Madia sativa
Madia subspicata
Chile tarplant, Chile tarweed, Chilean tarplant, Chilean tarweed, coast tarweed, coastal tarweed
slender tarweed
hirsute and glandular-pubescent, glands yellowish, purple, or black, lateral branches rarely surpassing main stems.
proximally ± villous, distally glandular-pubescent, glands yellowish, lateral branches not surpassing main stems.
blades broadly lanceolate to linear-oblong or linear, 2–18 cm × 3–18(–29) mm.
blades linear to lance-linear, 2–7 cm × 1–5 mm.
ovoid to urceolate, 6–16 mm.
globose or ovoid, 6–8 mm.
(5–)8–13;
corollas greenish yellow or sometimes purplish red abaxially or throughout, laminae 1.5–4 mm.
5–8;
corollas pale yellow, laminae 1–2.5 mm.
11–14, bisexual, fertile;
corollas 2–5 mm, pubescent;
anthers ± dark purple.
5–15, bisexual, fertile;
corollas 3–3.5 mm, pubescent;
anthers yellow to brownish.
hirsute and glandular-pubescent, glands yellowish, purple, or black, apices erect or ± reflexed, flat.
± hirsute and thick-stalked-glandular as well, glands golden yellow, apices ± erect, sulcate or flat.
in usually crowded, paniculiform, racemiform, or spiciform arrays.
in spiciform or spiciform-racemiform arrays (peduncles 0 or lengths usually less than 2 times heads).
similar.
similar.
black or brown, sometimes mottled, dull, compressed, beakless.
black or brown, sometimes purple-mottled, dull, compressed, ± clavate, beakless.
mostly persistent, connate 1/2+ their lengths.
mostly persistent, distinct or connate less than 1/2 their lengths.
= 32.
= 16.
Madia sativa
Madia subspicata
In North America, Madia sativa occurs on the Pacific Coast from California to British Columbia, sporadically in coastal ranges, and rarely eastward. Reports of M. sativa from Ontario and Quebec and from Alaska, Connecticut, Georgia, Idaho, Indiana, Iowa, Maine, Maryland, Massachusetts, New York, North Carolina, Pennsylvania, Vermont, and Wisconsin are putative waifs or misidentified M. glomerata. Molecular data and greenhouse studies have indicated that plants referable to M. capitata and M. sativa in California are not distinct (B. G. Baldwin, unpubl.). Sampled populations of M. sativa (including M. capitata) from California are somewhat divergent in DNA sequences from sampled Chilean populations, in apparent conflict with earlier suggestions that M. sativa was recently introduced to North America from South America by Europeans (Baldwin, unpubl.). Madia sativa has been cultivated for seed-oil in South America, Europe, Africa, and Asia Minor (E. Zardini 1992).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Madia subspicata occurs locally in the central and northern Sierra Nevada foothills, sometimes with the morphologically similar M. gracilis.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
PNW Herbaria, Turner Photog. 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
