Plant Index


 
 
 

Asclepias amplexicaulis

Asclepias amplexicaulis Sm.

clasping milkweed, sand milkweed

Asclepias amplexicaulis (Clasping Milkweed)
Image ID: 8749
Image by: Ware, Richard & Teresa
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: ASAM
SCIENTIFIC NAME: Asclepias amplexicaulis
Include in WOTAS: 1
Publish to Web: 1
Last Modified: 2017-11-20

GENUS INDEX

GENUS CODE: ASCLE
GENUS SCIENTIFIC: Asclepias
GENUS AUTHORITY: L.
GENUS COMMON: Milkweed
GENUS SUMMARY: A genus of about 100 species, herbs, temperate and tropical, of North and Central America.
GENUS IDENTIFICATION:
GENUS REFERENCES: Woodson (1954)=Z; Turner (2009b)=Y; Farmer & Bell (1985)=X.

FAMILY INDEX

FAMILY CODE: APOCYN
FAMILY SCIENTIFIC: Apocynaceae
FAMILY AUTHORITY: A.L. de Jussieu 1789
FAMILY COMMON: Dogbane Family
FAMILY SUMMARY: As here circumscribed including the Asclepiadaceae, a family of about 480 genera and about 4800 species, lianas, shrubs, herbs, and trees, widespread in tropical and temperate areas. There appears to be overwhelming evidence favoring the combination of the Asclepiadaceae into the Apocynaceae; see, for instance, Rosatti (1989), Sennblad & Bremer (1996), and many others.
FAMILY REFERENCE: Rosatti (1989); Liede (1997a).

NCBG DESCRIPTIVES

INTRO: Erect perennial of sandhills and other dry woodlands.
STEMS: Stems stout, usually unbranched, smooth with a white-waxy coating; leaks milky sap when bruised.
LEAVES: Leaves opposite (2-6 pairs), sessile and clasping, oblong or widely oval to elliptic, 3-5 in. long, with a pink midrib, wavy-margined, smooth and with a white-waxy coating.
INFLORESCENCE:
FLOWERS: Flowers (15-80) in a rounded, terminal umbel; smoky purple, about 1/2 in. long, consisting of 5 strongly reflexed pinkish-green corolla lobes and a central crown--composed of 5 2-parted appendages (“hood” and “horn”)--surrounding a complex structure of fused anthers and style.
FRUITS: Fruit an erect, spindle-shaped pod containing many tufted brown seeds.
COMMENTS:
HEIGHT: 2-3 ft.

DURATION: Perennial
HABIT: Herb

LEAF ARRANGEMENT: Opposite
LEAF COMPLEXITY: Simple
LEAF RETENTION:

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

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

FRUITING PERIOD: Jun-Aug.

DISTRIBUTION
HABITAT TYPE: Dry forests, Sandhills
NATIVE RANGE:

HORTICULTURAL
Plant Sale Text: The flower clusters of the clasping, or sand milkweed are like those Styrofoam atomic model kits you might have put together for a school science project. Each pinkish purple tubular crown juts out from the reflexed green petals, all sit in a spherical orbit about a central point at the top of the stem. The large leaves are wavy with a pink midrib and clasp the stem. The fruit is a 4” long pod that will dry on the stem to release the tufted windblown seeds. This plant inhabits open woods, enjoys a sunny location with sandy, freely draining soil.

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Dry, Average
LIGHT EXPOSURE: Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE: 3
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
333 2011-0200 2011-09-20 337 View
5451 1995-0574 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
337 HORT 2010-07-11 Poythress View
2018 NPMD 2020-07-23 Kunz View
2019 NPMD 2020-07-22 Summer View
2153 NPMD 2019-07-29 Touloupas View
2199 NPMD 2019-09-04 Touloupas View
2395 NPMD 2019-07-10 Touloupas View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
797 333 28 Poythress 2011-09-20 View
798 333 24 Poythress 2011-09-20 View
799 333 17 Poythress 2011-09-20 View
800 333 111 Steen 2011-09-21 View
7965 5451 204 NCBG staff 1993-01-01 View

USDA PLANTS DATABASE

USDA Symbol: ASAM
USDA Common Name: Clasping Milkweed
Native Status: L48 (N)
Distribution: USA (AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV)
Duration: Perennial
Growth Habit: Forb/herb

WEAKLEY FLORA

SCIENTIFIC NAME: Asclepias amplexicaulis
COMMON NAME: Clasping Milkweed, Sand Milkweed
SYNONYMY: [= C, F, G, Il, K, Pa, RAB, S, Va, W, WH3, Z]
PHENOLOGY: May-Jul; Jun-Aug.
HABITAT: Sandhills, other dry woodlands of various types.
COMMENTS: NH and NY west to MN, IA, and KS, south to c. peninsular. FL, west to e. TX. The flowers have a fragrance of cloves and roses.
RANGE MAP: Asclepias amplexicaulis.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Apocynaceae A.L. de Jussieu 1789 (Dogbane Family)
SUMMARY: As here circumscribed including the Asclepiadaceae, a family of about 480 genera and about 4800 species, lianas, shrubs, herbs, and trees, widespread in tropical and temperate areas. There appears to be overwhelming evidence favoring the combination of the Asclepiadaceae into the Apocynaceae; see, for instance, Rosatti (1989), Sennblad & Bremer (1996), and many others.
REFERENCE: Rosatti (1989); Liede (1997a).
ABOUT GENUS (Weakley Flora)
Asclepias L. (Milkweed)
SUMMARY: A genus of about 100 species, herbs, temperate and tropical, of North and Central America.
REFERENCE: Woodson (1954)=Z; Turner (2009b)=Y; Farmer & Bell (1985)=X.

HERBARIUM RESOURCES

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

WEB RESOURCES

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

NCBG IMAGE RECORDS

ID IMAGE1: 8749
ID IMAGE2: 19299
ID IMAGE3: 8749

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17 photo(s) available in the Image Gallery

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