Plant Index


 
 
 
 

Asclepias exaltata

Asclepias exaltata L.

poke milkweed, tall milkweed

Synonym(s): Asclepias bicknellii, Asclepias phytolaccoides
Asclepias exaltata (Poke Milkweed)
Image ID: 8751
Image by: Ware, Richard & Teresa
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: ASEX
SCIENTIFIC NAME: Asclepias exaltata
Include in WOTAS: 1
Publish to Web: 1
Last Modified: 2018-09-16

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 moist forests, forest margins and roadsides.
STEMS: Stem light-green to purplish-green, unbranched, mostly smooth; leaks milky sap when bruised.
LEAVES: Leaves opposite, petiolate, broadly oval to lance-oval, 3-8 in. long, thin-textured and smooth (midrib beneath may be hairy).
INFLORESCENCE:
FLOWERS: Flowers on long, drooping stalks in terminal umbel and several upper axillary umbels; green and pink, ¼ in. wide and ½ in. long, consisting of 5 strongly reflexed green or pale purple corolla lobes and a central crown--composed of 5 2-parted appendages (“hood” and “horn”)--which surrounds a complex structure of fused anthers and style.
FRUITS: Fruit an erect, spindle-shaped follicle containing tufted seeds.
COMMENTS: The nectar of the flowers attracts many butterflies, and the plant hosts Monarch larvae.
HEIGHT: 2-6 ft.

DURATION: Perennial
HABIT: Herb

LEAF ARRANGEMENT: Opposite
LEAF COMPLEXITY: Simple
LEAF RETENTION:

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

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

FRUITING PERIOD: Aug-Sep.

DISTRIBUTION
HABITAT TYPE: Disturbed, Moist forests
NATIVE RANGE: eastern North America

HORTICULTURAL
Plant Sale Text: Poke milkweed has terminal umbels of white flowers, sometimes tinged with a lavender or greenish tint. The flowers are produced in such profusion that overall this plant is quite showy when in bloom. The flowers of this southeastern native species are arranged in large, drooping umbels. The nectar of the flowers attracts many butterflies. This species is also a host plant for the larvae of the Monarch butterfly and the genus supports up to 12 lepidoptera species. Poke milkweed grows at the edges of woods and along roadsides.

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Dry, Average
LIGHT EXPOSURE: Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE: 3
MAXIMUM HARDINESS ZONE: 8
GERMINATION CODE:
WILDLIFE VALUE: Bee Friendly, Butterfly Friendly
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
6627 1996-0264 View
8973 1993-0013 0000-00-00 1647 View
9530 2022-0024 2022-08-16 2618 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
1647 HORT 1991-10-22 Ward View
1741 HORT 2005-01-01 Bryan View
2555 NPMD 2021-10-05 Boyette View
2556 NPMD 2021-10-05 Boyette View
2618 HORT 2019 Gocke View
2672 NPMD 2022-09-28 Marzolf View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
7074 8973 11 NCBG staff 1967-12-31 View
9380 6627 8 NCBG staff 1996-03-05 View
13380 9530 188 Liloia 2022-08-02 View

USDA PLANTS DATABASE

USDA Symbol: ASEX
USDA Common Name: Poke Milkweed
Native Status: L48 (N), CAN (N)
Distribution: USA (AL, CT, DE, GA, IA, IL, IN, KY, MA, MD, ME, MI, MN, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WI, WV), CAN (ON, QC)
Duration: Perennial
Growth Habit: Forb/herb

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: UPL FACU FAC UPL UPL

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: Asclepias exaltata
COMMON NAME: Tall Milkweed, Poke Milkweed
SYNONYMY: [= C, F, G, Il, K, Pa, RAB, S, Va, W, Z]
PHENOLOGY: Jun-Jul; Aug-Sep.
HABITAT: Moist forests, slopes, and forest margins.
COMMENTS: ME and s. ON west to MN and IA, south to n. GA, n. AL (Schotz 2009). e. and c. TN (Chester, Wofford, & Kral 1997), KY, and IL.
RANGE MAP: Asclepias exaltata.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 exaltata in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Asclepias exaltata in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

WEB RESOURCES

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

IMAGE USE RECORDS

ID IMAGE: 8751 - Primary Image FloraQuest Plant Detail Page (Landscape Preferred)
ID IMAGE1: 23424 - Primary Image WOTAS
ID IMAGE2: 0 - Secondary Image WOTAS
ID IMAGE3: 8751 - Primary Image Plant Sale Sign (Landscape Only)
ID IMAGE4: 0 - Primary Image New Plant Sale Label (Portrait Only)

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58 photo(s) available in the Image Gallery

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