Horkelia clevelandii

(Greene) Rydberg

Bull Torrey Bot. Club 25: 54. 1898.

Basionym: Potentilla clevelandii Greene Pittonia 1: 102. 1887 (as clevelandi)
Synonyms: Horkelia bolanderi subsp. clevelandii (Greene) D. D. Keck P. bolanderi var. clevelandii (Greene) Jepson
Treatment appears in FNA Volume 9. Treatment on page 252. Mentioned on page 250, 251, 253.

Discussion

Varieties 2 (1 in the flora).

The component of Horkelia clevelandii occurring in the Sierra San Pedro Mártir and most of the Sierra Juarez of northern Baja California, Mexico, is var. brevibracteata (Wiggins) Ertter & Reveal. It differs from var. clevelandii in tending to have a more compact and matted habit, shorter stems (1–3 dm), more numerous (11–16) pairs of smaller (4–8 mm) leaflets, shorter epicalyx bractlets (1.5–2 mm), and deeper hypanthia (2–2.5 mm).

Selected References

None.

"thin" is not a number."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

... more about "Horkelia clevelandii"
rugose +  and smooth +
0.8mm +  and 2mm +
longer than wide +
truncate +  and emarginate +
Barbara Ertter +  and James L. Reveal +
(Greene) Rydberg +
compound +  and simple +
opposite +  and alternate +
cylindric;planar +
flattened +
Potentilla clevelandii +
30 cm300 mm <br />0.3 m <br /> (40 cm400 mm <br />0.4 m <br />) +
planar +  and cylindric +
2 cm20 mm <br />0.02 m <br /> (30 cm300 mm <br />0.3 m <br />) +
coriaceous +
reduced +
free +  and distinct +
open to congested +
Calif. +  and nw Mexico +
not +  and aggregated +
toothed +, narrowly elliptic-lanceolate +  and broadly ovate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
flattened +
0.4 cm4 mm <br />0.004 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
obliquely ovoid +  and reniform +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
glabrous +  and pilose +
0 +  and 1/2 +
0.1 cm1 mm <br />0.001 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
open to congested +
crassinucellate +
opposite +  and alternate +
marcescent +
winter-persistent +
separate +  and overlapping +
oblanceolate +
palmate +  and pinnate +
shallowly toothed +  and deeply divided +
inferior +  and superior +
clustered +, biseriate +  and superposed +
recurved +  and reflexed +
0 (?) +  and 4 (?) +
free +  and distinct +
oblong-oblanceolate;round +
adnate +, free +, connate +  and distinct +
Bull Torrey Bot. Club +
not arillate +
linear;filiform +
persistent +
free +  and distinct +
erect +, spreading +  and strongly reflexed +
free +  and distinct +
branched +  and simple +
stramineous +, reddish +  and green +
ascending +  and erect +
1 +  and 10 +
palmate +  and pinnate +
deciduous +
distinct +
subterminal +
filiform +
rough-thickened +
Horkelia bolanderi subsp. clevelandii +  and P. bolanderi var. clevelandii +
Horkelia clevelandii +
Horkelia sect. Horkelia +
species +
3 (?) +  and 30 (?) +
inconspicuous +
enlarged +
green +  and grayish +
hairy +  and inconspicuously conspicuously glandular +