Madia sativa
Madia radiata
Chile tarplant, Chile tarweed, Chilean tarplant, Chilean tarweed, coast tarweed, coastal tarweed
golden madia, showy golden madia, showy madia
hirsute and glandular-pubescent, glands yellowish, purple, or black, lateral branches rarely surpassing main stems.
glandular-pubescent, glands yelloish or purple, lateral branches often surpassing main stems.
blades broadly lanceolate to linear-oblong or linear, 2–18 cm × 3–18(–29) mm.
blades lanceolate to linear, 2–10 cm × 4–15 mm.
ovoid to urceolate, 6–16 mm.
depressed-globose, 4–7 mm.
(5–)8–13;
corollas greenish yellow or sometimes purplish red abaxially or throughout, laminae 1.5–4 mm.
8–16;
corollas golden yellow, laminae 6–19 mm.
11–14, bisexual, fertile;
corollas 2–5 mm, pubescent;
anthers ± dark purple.
18–65, bisexual, fertile;
corollas 3.5–5.5 mm, pubescent;
anthers yellow to brownish.
hirsute and glandular-pubescent, glands yellowish, purple, or black, apices erect or ± reflexed, flat.
pilose to hispid (hairs uncinate) and glandular-pubescent, glands yellowish or purple, apices ± erect or reflexed, flat.
in usually crowded, paniculiform, racemiform, or spiciform arrays.
in open, ± corymbiform arrays.
similar.
similar, not beaked.
black or brown, sometimes mottled, dull, compressed, beakless.
black, purple, or mottled, dull or glossy, compressed (strongly arcuate), beaked (beaks adaxially offset, curved).
mostly persistent, connate 1/2+ their lengths.
readily falling, distinct.
= 32.
= 16.
Madia sativa
Madia radiata
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.)
Of conservation concern.
Madia radiata occurs in the Inner South Coast Ranges and, locally, in the eastern San Francisco Bay area. It sometimes co-occurs with Deinandra halliana; the two species are morphologically similar.
(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
