Centromadia parryi subsp. rudis

(Greene) B. G. Baldwin

Novon 4: 467. 1999.

Endemic
Basionym: Centromadia rudis Greene Man. Bot. San Francisco, 197. 1894
Synonyms: Hemizonia parryi subsp. rudis (Greene) D. D. Keck
Treatment appears in FNA Volume 21. Treatment on page 279. Mentioned on page 277, 278.

Leaves (and peduncular bracts) scabroso-hirtellous and usually ± hirsute or setose-ciliate, not glandular or with sparsely and irregularly distributed, minute, sessile or stipitate, yellowish glands. Involucres 3.5–5 mm. Paleae lacking purple lines. Ray corolla laminae 2–3 mm. Anthers yellow or brownish. 2n = 22.


Phenology: Flowering Jun–Oct.
Habitat: Grasslands, edges of marshes and vernal pools, disturbed sites (e.g., fallow fields)
Elevation: 0–500 m

Discussion

Subspecies rudis occurs in the southern Sacramento Valley, northern San Joaquin Valley, and, uncommonly, in the southern Inner North Coast Ranges.

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
brownish +  and yellow +
pale +  and dark +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
umbelliform +, spiciform +, paniculiform +, glomerulate +  and corymbiform +
indeterminate +  and determinate +
Bruce G. Baldwin +  and John L. Strother +
(Greene) B. G. Baldwin +
decurrent +
Centromadia rudis +
compound +  and simple +
linear to linear-elliptic +
oblanceolate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
hairy +  and glabrous +
fusiform +, clavate +, obpyramidal +, terete +, compressed +  and obcompressed +
fertile +  and bisexual +
fertile +  and bisexual +
0–500 m +
villous +, hirsute +, scabroso-hirtellous +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
umbelliform +  and spiciform-paniculiform +
Grasslands, edges of marshes and vernal pools, disturbed sites (e.g., fallow fields) +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
urceolate;obconic +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
stipitate +  and sessile +
distributed +
hirsute +  and scabroso-hirtellous +
minute +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
of 3 +  and 12 linear , oblanceolate or subulate , scales +
Flowering Jun–Oct. +
5 +  and 75 +
1-2-pinnatifid +
alternate +  and opposite +
flat;convex +
3 +  and 5 +
subulate +  and linear +
exalbuminous +
less erect +  and prostrate +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Hemizonia parryi subsp. rudis +
Centromadia parryi subsp. rudis +
Centromadia parryi +
subspecies +
cylindric +
entire +  and toothed +
10 cm100 mm <br />0.1 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +