Flora of North America species comparison

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Madia radiata

golden madia, showy golden madia, showy madia
Habit Plants 10–90 cm; self-incompatible (heads showy).
Stems

glandular-pubescent, glands yelloish or purple, lateral branches often surpassing main stems.
Leaf

blades lanceolate to linear, 2–10 cm × 4–15 mm.
Involucres

depressed-globose, 4–7 mm.
Ray florets

8–16;

corollas golden yellow, laminae 6–19 mm.
Disc florets

18–65, bisexual, fertile;

corollas 3.5–5.5 mm, pubescent;

anthers yellow to brownish.
Phyllaries

pilose to hispid (hairs uncinate) and glandular-pubescent, glands yellowish or purple, apices ± erect or reflexed, flat.
Heads

in open, ± corymbiform arrays.
Disc cypselae

similar, not beaked.
Ray cypselae

black, purple, or mottled, dull or glossy, compressed (strongly arcuate), beaked (beaks adaxially offset, curved).
Paleae

readily falling, distinct.
2n

= 16.

Madia radiata
Phenology Flowering Mar–May.
Habitat Grasslands, openings in woodlands or chaparral, disturbed sites, usually heavy, clayey soils, often from decomposed shale
Elevation 20–1200 m (100–3900 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

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.)
Source FNA vol. 21, p. 305.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Madiinae > Madia
Sibling taxa
M. anomala, M. citrigracilis, M. citriodora, M. elegans, M. exigua, M. glomerata, M. gracilis, M. sativa, M. subspicata
Name authority Kellogg: Proc. Calif. Acad. Sci. Sci. 4: 190. (1870)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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