dcsimg

Comments

provided by eFloras
Madia elegans occurs widely in California outside the deserts and in southwestern Oregon and locally in western Nevada and Washington. It is unusually variable in morphology, ecology, and phenology. Molecular data have indicated that D. D. Keck’s (1959) infraspecific taxonomy for M. elegans needs revision. Putative natural (sterile) hybrids with M. sativa have been collected (e.g., D. D. Keck 2647, UC, from northern California).
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 304, 305, 307 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Description

provided by eFloras
Plants 6–250 cm, self-incom-patible (heads showy). Stems proximally villous to hirsute, distally glandular-pubescent, glands yellowish, purple, or black, lateral branches sometimes surpassing main stems. Leaf blades lanceolate to linear, 3–20 cm × 2–20 mm. Heads in open, corymbiform arrays. Involucres ± globose to campanulate, 4.5–12 mm. Phyllaries ± hirsute or villous, usually glandular-pubescent as well, glands yellowish, purple, or black, apices erect or reflexed, flat. Paleae mostly persistent, mostly connate 1/2+ their lengths. Ray florets (2–)5–22; corollas bright yellow (sometimes with maroon bases), laminae 4–20 mm. Disc florets 25–80+, functionally staminate; corollas 2.5–5 mm, pubescent; anthers yellow to brownish or ± dark purple. Ray cypselae black or brown, sometimes mottled, dull, compressed or ± 3-angled (slightly rounded abaxially, angled 15–45° adaxially), beakless (or nearly so). Disc cypselae 0. 2n = 16.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 304, 305, 307 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Synonym

provided by eFloras
Madia elegans subsp. densifolia (Greene) D. D. Keck; M. elegans subsp. vernalis D. D. Keck; M. elegans subsp. wheeleri (A. Gray) D. D. Keck
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 304, 305, 307 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Madia elegans

provided by wikipedia EN

Madia elegans is an annual herbaceous plant species in the family Asteraceae. It is generally known as the common madia, but there are several subspecies known by various common names.[1]

Description

Madia elegans is covered with short, stiff hairs. Glands are borne on stalks, especially near the flowers.[1] The showy flower varies in appearance across subspecies and even within subspecies. The leaves grow to 20 centimetres (8 inches) in length.[2] Blooming between April and October, several strongly scented, uncrowded, bright yellow daisy-like flower heads grow at the end of a slender green stem, each typically 3–5 centimetres (1+14–2 inches) wide.[2][3] The flower has numerous thin ray flowers, which close at night,[2] and several central disk flowers. It may be solid lemon yellow or have a maroon center.[2] Its fruits are achenes.

Taxonomy

Subspecies

  • Madia elegans densifolia - showy tarweed
  • Madia elegans elegans - common madia
  • Madia elegans vernalis - spring madia
  • Madia elegans wheeleri - Wheeler's tarweed

Etymology

The foliage of species in the genus has sticky hairs, hence the common name tarweed.[2]

Distribution and habitat

The plant is native to western North America from south-central Washington state to northern Baja California.[3][1][4][5] It may be found in dry open forest, disturbed areas and grasslands from low to high elevations.[3]

Uses

The achenes were historically used as food by Native Americans, including the Pomo and Miwok, who baked them or ground them into flour.

References

  1. ^ a b c Giblin, David, ed. (2015). "Madia elegans". WTU Herbarium Image Collection. Burke Museum, University of Washington. Retrieved 2015-01-17.
  2. ^ a b c d e Spellenberg, Richard (2001) [1979]. National Audubon Society Field Guide to North American Wildflowers: Western Region (rev ed.). Knopf. p. 387. ISBN 978-0-375-40233-3.
  3. ^ a b c Sullivan, Steven. K. (2015). "Madia elegans". Wildflower Search. Retrieved 2015-01-17.
  4. ^ "Madia elegans". PLANTS Database. United States Department of Agriculture; Natural Resources Conservation Service. 2015. Retrieved 2015-01-17.
  5. ^ Hogan, C. Michael (curator). "Madia elegans". Encyclopedia of Life. Retrieved 2015-01-18.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Madia elegans: Brief Summary

provided by wikipedia EN

Madia elegans is an annual herbaceous plant species in the family Asteraceae. It is generally known as the common madia, but there are several subspecies known by various common names.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN