dcsimg
Image of grassy tarweed
Life » » Plants » » Dicotyledons » » Composite Family »

Grassy Tarweed

Madia gracilis (Sm.) Keck & J. Clausen ex Applegate

Comments

provided by eFloras
Madia gracilis occurs widely in California (except the warm deserts), is scattered across much of Nevada, Oregon, and Washington (outside the driest regions), and extends into southernmost British Columbia, north-western Montana, and northern Utah. Near the coast, M. gracilis sometimes co-occurs with M. sativa; the two species are partially interfertile (M. gracilis tends to flower earlier than M. sativa; J. Clausen 1951). Reported occurrences of M. gracilis in Maine and South America have not been confirmed.
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: 305, 306, 307, 308 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 6–100 cm, self-compatible (heads not showy). Stems prox-imally pilose to hirsute, distally glandular-pubescent, glands yel-lowish, purple, or black, lateral branches seldom surpassing main stems. Leaf blades oblong to linear, 1–10(–15) cm × 1–8(–10) mm. Heads in ± open, paniculiform or racemiform arrays. Involucres depressed-globose to urceolate, 5–10 mm. Phyllaries sometimes hirsute, always finely or coarsely glandular-pubescent, glands yellowish, purple, or black, apices erect or ± reflexed, flat. Paleae mostly persistent, connate 1/2+ their lengths. Ray florets 3–10; corollas lemon yellow or greenish yellow, laminae 1.5–8 mm. Disc florets 2–16+, bisexual, fertile; corollas 2.5–5 mm, pubescent; anthers ± dark purple. Ray cypselae black, purple, or mottled, dull, compressed, beakless (or nearly so). Disc cypselae similar. 2n = 32, 48.
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: 305, 306, 307, 308 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
Sclerocarpus gracilis Smith in A. Rees, Cycl. 31: Sclerocarpus no. 2. 1815; Madia gracilis subsp. collina D. D. Keck; M. gracilis subsp. pilosa 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: 305, 306, 307, 308 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 gracilis

provided by wikipedia EN

Madia gracilis is a species of flowering plant in the family Asteraceae known by the common names grassy tarweed, slender tarweed, and gumweed madia.[1][2]

Description

Madia gracilis is vstem is branching, and hairy and glandular in texture. The leaves are up to 10 centimeters long and covered in soft hairs and stalked resin glands.

The inflorescence is an array of clusters of flower heads. Each head is lined with phyllaries that are coated densely with stalked knobby resin glands. It bears yellow, lobe-tipped ray florets a few millimeters long and several black-anthered disc florets.

The fruit is a flat, hairless achene with no pappus.

Distribution and habitat

The annual herb is native to western North America: from British Columbia, through California to Baja California; and east to Utah and Montana.[3][4] It grows in many habitat types except for arid desert areas, including oak woodlands and mixed evergreen forests.[5]

Uses

The seeds were used to make pinole by the indigenous Mendocino, Miwok, and Pomo peoples of California.[6]

References

  1. ^ "ITIS - Report: Madia gracilis". www.itis.gov.
  2. ^ "Madia gracilis in Flora of North America @ efloras.org". www.efloras.org.
  3. ^ USDA, NRCS (n.d.). "Madia gracilis (Sm.) D.D. Keck". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 7 June 2022.
  4. ^ Encyclopedia of Life: Madia gracilis, C.Michael Hogan ed. 2010
  5. ^ Jepson Madia gracilis
  6. ^ University of Michigan at Dearborn: Native American Ethnobotany of Madia gracilis

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

Madia gracilis: Brief Summary

provided by wikipedia EN

Madia gracilis is a species of flowering plant in the family Asteraceae known by the common names grassy tarweed, slender tarweed, and gumweed madia.

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