Pseudobahia heermannii

(Durand) Rydberg in N. L. Britton et al.

in N. L. Britton et al., N. Amer. Fl. 34: 83. 1915.

Common names: Foothill sunburst brittlestem
IllustratedEndemic
Basionym: Monolopia heermannii Durand J. Acad. Nat. Sci. Philadelphia, n. s. 3: 93. 1855
Treatment appears in FNA Volume 21. Treatment on page 352.

Plants to 30 cm. Leaves 10–30 mm, mostly 1-pinnately lobed (lobes 0.5–1.5 mm wide), distal sometimes entire. Peduncles 20–50 mm. Phyllaries ± 8, connate to 1/2 their lengths, elliptic to lanceolate (each pair with semicircular crest proximal to sinus, hard at maturity, ± enclosing cypselae). Ray-florets ± 8. Disc-florets 8–25+; tubes cylindric, abruptly dilated (throats broadly funnelform), lobes glabrous. Cypselae 2–2.5 mm. 2n = 6 + 0–2I, 8 + 0–1I or 0–1B, 10 + 0–1I.


Phenology: Flowering Mar–Jun.
Habitat: Grasslands or sandy or rocky openings in chaparral, foothill woodlands, yellow pine forests
Elevation: 100–1600 m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Pseudobahia heermannii"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +, glomerate +  and corymbiform +
indeterminate +  and determinate +
Dale E. Johnson +
(Durand) Rydberg in N. L. Britton et al. +
decurrent +
Monolopia heermannii +
compound +  and simple +
entire;3-lobed;lobed +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
Foothill sunburst +  and brittlestem +
glabrate +  and hairy +
papillate +
obpyramidal +  and clavate +
fertile +  and bisexual +
fertile +  and bisexual +
100–1600 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Grasslands or sandy or rocky openings in chaparral, foothill woodlands, yellow pine forests +
disciform +  and discoid +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
hemispheric +
1 cm10 mm <br />0.01 m <br /> (?) +  and 3 cm30 mm <br />0.03 m <br /> (?) +
papillate +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
of 1 +  and 12+ aristate +
coroniform +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flowering Mar–Jun. +
scarious-margined +
weakly +  and flat +
glabrous +, glabrate +, woolly +  and tomentose +
in N. L. Britton et al., N. Amer. Fl. +
conic;hemispheric +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Eriophyllinae +
Pseudobahia heermannii +
Pseudobahia +
species +
cylindric +
dilated +  and cylindric +
toothed +  and entire +
30 cm300 mm <br />0.3 m <br /> (70 cm700 mm <br />0.7 m <br />) +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +