Plant Index


 
 
 

Andropogon gerardii

Andropogon gerardii Vitman

big bluestem, turkeyfoot

Synonym(s): Andropogon chrysocomus, Andropogon furcatus, Andropogon gerardii var. chrysocomus, Andropogon provincialis
Cultivar(s): Lord Snowden
Andropogon gerardii (Big Bluestem)
Image ID: 10055
Image by: Sorrie, Bruce A.
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: ANGE
SCIENTIFIC NAME: Andropogon gerardii
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2018-09-16

CULTIVAR INDEX

Cult_id Cultivar_name Action
1177 Lord Snowden View

GENUS INDEX

GENUS CODE: ANDRO2
GENUS SCIENTIFIC: Andropogon
GENUS AUTHORITY: L.
GENUS COMMON: Bluestem
GENUS SUMMARY: A genus of about 100-110 species, mainly tropical. Campbells work (1983, et seq.) has greatly clarified the taxonomy of Andropogon in e. North America. Great confusion and disagreement were previously the rule in dealing with the A. virginicus-A. glomeratus complex. Campbells careful morphologic work has provided workable technical characters which distinguish the taxa he recognizes. I have generally followed Campbell (1983, et seq.) in his circumscriptions of taxa, but have differed in decisions of rank; see Weakley et al. (2011) for discussion. Taxa differing in numerous morphologic characters, with different (though overlapping) geographic ranges, with different ecological preferences (often rather narrowly segregated by hydrology), and (when they do occur in proximity to one another) showing little or no sign of introgression or hybridization are probably better treated as biological species. Thus, I have treated a number of Campbells varieties as species. Several of his variants also warrant taxonomic recognition, at varietal or specific rank (Campbell 1986; Weakley et al. 2011).
GENUS IDENTIFICATION: Identification notes: A thorough understanding of the architecture of the inflorescences of Andropogon is necessary in order to identify them successfully. The parts will be described, beginning from the apex of a branch of the inflorescence. Spikelets occur in pairs, the sessile spikelet (usually just referred to as the spikelet) and the pedicelled spikelet, which is usually vestigial or absent (except in A. gerardi) and sterile (except in A. gerardi, where it is staminate). The first or lower glume of the sessile spikelet has two keels, and the presence and location of antrorse prickle hairs (scabrousness) is an important character in the A. glomeratus complex. The length of the sessile spikelet is an important character; it should be measured exclusive of the awn, borne at the apex of the lemma. Awn length is also a useful taxonomic character. The pedicelled spikelet is borne on the pedicel, which is attached at the base of the sessile spikelet and typically angles away from it at about a 45 degree angle. The rachis internode extends from the base of one sessile spikelet to the next sessile spikelet above, breaking apart (upon dehiscence) just below the next spikelet and remaining attached to the sessile spikelet below. The dispersal unit consists of a sessile spikelet sitting in the V shape formed by (on one side) the pedicel and pedicelled spikelet and (on the other side) the rachis internode. Both the pedicel and the rachis internode are usually pubescent with long hairs, and the color of those hairs and their distribution are useful characters.
GENUS REFERENCES: Campbell (1983)=Z; Campbell in FNA (2003a); Weakley et al. (2011)=Y. Key adapted in part from Z.

FAMILY INDEX

FAMILY CODE: POACEA
FAMILY SCIENTIFIC: Poaceae
FAMILY AUTHORITY: (R. Brown) Barnhart 1895 or GRAMINEAE A.L. de Jussieu 1789
FAMILY COMMON: Grass Family
FAMILY SUMMARY: A family of about 771 genera and 12,074 species, herbs (and some shrubs and trees), cosmopolitan. Tribal classification largely follows FNA (2003a, 2007a), with some changes based on subsequent research, as for instance in the Chloridoideae (Peterson, Romaschenko, & Johnson 2010a).
FAMILY REFERENCE: Flora of North America Editorial Committee (2003a, 2007a)=FNA; Hitchcock and Chase (1950)=HC; Blomquist (1948); Peterson, Romaschenko, & Johnson (2010a, 2010b). Key to genera adapted in large part from FNA.

NCBG DESCRIPTIVES

INTRO:
STEMS:
LEAVES: Blue-green foliage.
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT: 4-8 ft.

DURATION: Perennial
HABIT: Grass/Grasslike

LEAF ARRANGEMENT: Alternate
LEAF COMPLEXITY: Simple
LEAF RETENTION:

FLORAL CHARACTERISTICS
SYMMETRY:
BLOOM TIME: July-Oct
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x x x x x

BLOOM COLOR:
White Red Pink Orange Yellow Green Blue Lavender Purple Violet Brown Not Applicable
x x x x

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE:
NATIVE RANGE: eastern & central N. America

HORTICULTURAL
Plant Sale Text: This quintessential prairie grass thrives in a wide range of soil types and is tolerant of both drought and salt. This attractive native was once an important forage for migratory herds of bison in the mid-west. It serves as a host plant for the Delaware Skipper and the Dusted Skipper. Established specimens will lend subtle blue tones to any landscape which fade into a nice russet brown later in the season. The genus supports up to 11 lepidoptera species.

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Dry, Average, Moist/Wet
LIGHT EXPOSURE: Sun, Part Shade
MINIMUM HARDINESS ZONE: 4
MAXIMUM HARDINESS ZONE: 9
GERMINATION CODE:
WILDLIFE VALUE: Bee Friendly, Butterfly Friendly
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
247 2011-0087 2011-05-04 250 View
7335 2000-0072 2000-03-14 View
7398 2000-0141 2000-04-05 View
7696 2001-0050 2001-04-25 View
8132 2004-0141 2006-05-19 View
8150 2004-0160 2006-05-19 View
8286 2005-0003 2005-02-11 View
8711 2006-0365 2006-11-01 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
250 HORT 2009-01-01 Poythress View
607 SOS 2015-10-18 Driskill View
800 SOS 2016-10-06 Faucette View
845 SOS 2016-11-16 Healy View
2426 NPMD 2020-10-10 Kunz View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
570 247 21 Liloia 2011-05-02 View
571 247 23 Liloia 2011-07-12 View
10302 7335 166 NCBG staff 2000-03-08 View
10303 7335 175 NCBG staff 2000-03-08 View
10394 7398 143 NCBG staff 1999-08-01 View
10884 7696 200 NCBG staff 1967-12-01 View
11386 8132 200 NCBG staff 2003-03-03 View
11404 8150 200 NCBG staff 2003-02-14 View

USDA PLANTS DATABASE

USDA Symbol: ANGE
USDA Common Name: Big Bluestem
Native Status: L48 (N), CAN (N)
Distribution: USA (AL, AR, AZ, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY), CAN (MB, ON, QC, SK)
Duration: Perennial
Growth Habit: Graminoid

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FAC FACU FAC FACU FAC FACU FACU

This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast

WEAKLEY FLORA

SCIENTIFIC NAME: Andropogon gerardi
COMMON NAME: Big Bluestem, Turkeyfoot
SYNONYMY: [= G, HC, WV; = A. gerardii - C, FNA, GW, K, Pa, RAB, Tn, Va, W, WH3, orthographic variant; > A. gerardi var. gerardi - F; = A. provincialis Lamarck - S; = A. furcatus Muhlenberg ex Willdenow]
PHENOLOGY: Jul-Oct.
HABITAT: In a wide variety of habitats, usually rather dry, such as sandhills, glades, cliffs, and rock outcrops, in the Piedmont in woodlands, former prairie-like sites, woodlands, open forests, and river-scour grasslands, in the Mountains in glades, riverside scour areas, and rarely in grassy balds, ascending to at least 1600 m over mafic rocks (on Old Field Bald, Watauga and Ashe counties, NC).
COMMENTS: QC west to SK, south to FL and AZ. Some favor treating A. hallii Hackel as a subspecies of A. gerardi (Wipff 1996c); I do not agree, but if that course is followed, then our eastern taxon becomes A. gerardi ssp. gerardi.
RANGE MAP: Andropogon gerardi.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Poaceae (R. Brown) Barnhart 1895 or GRAMINEAE A.L. de Jussieu 1789 (Grass Family)
SUMMARY: A family of about 771 genera and 12,074 species, herbs (and some shrubs and trees), cosmopolitan. Tribal classification largely follows FNA (2003a, 2007a), with some changes based on subsequent research, as for instance in the Chloridoideae (Peterson, Romaschenko, & Johnson 2010a).
REFERENCE: Flora of North America Editorial Committee (2003a, 2007a)=FNA; Hitchcock and Chase (1950)=HC; Blomquist (1948); Peterson, Romaschenko, & Johnson (2010a, 2010b). Key to genera adapted in large part from FNA.
ABOUT GENUS (Weakley Flora)
Andropogon L. (Bluestem)
SUMMARY: A genus of about 100-110 species, mainly tropical. Campbells work (1983, et seq.) has greatly clarified the taxonomy of Andropogon in e. North America. Great confusion and disagreement were previously the rule in dealing with the A. virginicus-A. glomeratus complex. Campbells careful morphologic work has provided workable technical characters which distinguish the taxa he recognizes. I have generally followed Campbell (1983, et seq.) in his circumscriptions of taxa, but have differed in decisions of rank; see Weakley et al. (2011) for discussion. Taxa differing in numerous morphologic characters, with different (though overlapping) geographic ranges, with different ecological preferences (often rather narrowly segregated by hydrology), and (when they do occur in proximity to one another) showing little or no sign of introgression or hybridization are probably better treated as biological species. Thus, I have treated a number of Campbells varieties as species. Several of his variants also warrant taxonomic recognition, at varietal or specific rank (Campbell 1986; Weakley et al. 2011).
REFERENCE: Campbell (1983)=Z; Campbell in FNA (2003a); Weakley et al. (2011)=Y. Key adapted in part from Z.

HERBARIUM RESOURCES

SERNEC: Find Andropogon gerardii in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Andropogon gerardii in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

WEB RESOURCES

USDA: Find Andropogon gerardii in USDA Plants
NPIN: Find Andropogon gerardii in NPIN Database
FNA: Find Andropogon gerardii in the Flora of North America (if available)
Google: Search Google for Andropogon gerardii

NCBG IMAGE RECORDS

ID IMAGE1: 10055
ID IMAGE2: 10057
ID IMAGE3: 10055

From the Image Gallery


Image ID: 10057

Image ID: 10058

Image ID: 10059

Image ID: 10060

Image ID: 10061

Image ID: 10063

Image ID: 35267

Image ID: 34454

Image ID: 34455

Image ID: 35032

Image ID: 35033

Image ID: 35268

Image ID: 10056

Image ID: 35266

Image ID: 35034

Image ID: 34453

Image ID: 10062
18 photo(s) available in the Image Gallery

Go back