Madia subspicata
Madia glomerata
slender tarweed
cluster tarweed, mountain tarplant, mountain tarweed
proximally ± villous, distally glandular-pubescent, glands yellowish, lateral branches not surpassing main stems.
proximally villous to hispid, glandular-pubescent distally, glands yellowish or black, lateral branches sometimes surpassing main stems.
blades linear to lance-linear, 2–7 cm × 1–5 mm.
blades linear to lance-linear, 2–10 cm × 2–7 mm.
globose or ovoid, 6–8 mm.
narrowly ovoid or ellipsoid, 5.5–9 mm.
5–8;
corollas pale yellow, laminae 1–2.5 mm.
0 or 1–3;
corollas greenish yellow to purplish, laminae 1–3 mm.
5–15, bisexual, fertile;
corollas 3–3.5 mm, pubescent;
anthers yellow to brownish.
1–5(–12), bisexual, fertile;
corollas 3–4.5 mm, pubescent;
anthers ± dark purple.
± hirsute and thick-stalked-glandular as well, glands golden yellow, apices ± erect, sulcate or flat.
± pilose and glandular-pubescent, glands yellowish or black, apices erect or reflexed, ± flat.
in spiciform or spiciform-racemiform arrays (peduncles 0 or lengths usually less than 2 times heads).
usually in crowded glomerules, sometimes in corymbiform or paniculiform arrays.
similar.
similar.
black or brown, sometimes purple-mottled, dull, compressed, ± clavate, beakless.
black, dull, compressed, beakless.
mostly persistent, distinct or connate less than 1/2 their lengths.
mostly persistent, distinct.
= 16.
= 28.
Madia subspicata
Madia glomerata
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.)
Madia glomerata has the most extensive North American distribution of any species in Madiinae. At southern latitudes, M. glomerata occurs mostly in montane settings. Occurrences in eastern North America are mostly local and widely scattered.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
Go Botany, 
MI Flora, 
MN Wildflowers, 
PNW Herbaria, 
SW CO Wildflowers, Turner Photog. 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
