climbing hempvine (Nash Prairie Plants List)

climbing hempvine

Mikania scandens

Summary ⁵

Mikania scandens is a species of flowering plant in the aster family, Asteraceae. Its common names include climbing hempvine, climbing hempweed, and louse-plaster. It is native to the eastern and central United States, its distribution extending into Tamaulipas in Mexico. Reports of its presence in Ontario in Canada are erroneous. It is an introduced and invasive species on many Pacific Islands and in parts of southern Asia.

Description ⁶

Stems obscurely 6-angled to terete, glabrate to densely pilose; internodes 8–15 cm. Petioles 20–50 mm, glabrous or puberulent. Leaf blades triangular to triangular-ovate, 3–15 × 2–11 cm, bases cordate to hastate, margins subentire to undulate, crenate, or dentate, apices acuminate (tips often caudate), faces puberulent. Arrays of heads dense, corymbiform, 12–15 × 12 cm. Heads 6–7 mm. Phyllaries green or pinkish to purplish, linear to lanceolate, 5–6 mm, apices acuminate (faces glabrous or puberulent). Corollas usually pinkish to purplish, sometimes white, 3–5.4 mm, sparsely gland-dotted, lobes triangular to deltate. Cypselae dark brown to blackish, 1.8–2.2 mm, densely gland-dotted; pappi of 30–37 white or pinkish to purplish bristles 4–4.5 mm. 2n = 38.

Sources and Credits

no rights reserved, uploaded by Alan Weakley
(c) Forest and Kim Starr, some rights reserved (CC BY), https://www.flickr.com/photos/starr-environmental/24674292015/
(c) Sara Rall, some rights reserved (CC BY-NC), uploaded by Sara Rall
(c) Michael Ellis, some rights reserved (CC BY), uploaded by Michael Ellis
Adapted by Amber Leung from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Mikania_scandens
(c) Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/5003861

More Info

iNat Map

Family	Asteraceae

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