Horkelia clevelandii var. clevelandii

Treatment appears in FNA Volume 9. Treatment on page 253. Mentioned on page 252.

Plants tufted, green to grayish. Stems ascending to erect, 1–5 dm, hairs spreading. Basal leaves planar, 5–15 (–18) × 1–2.5 cm; stipules entire; leaflets 6–12 per side, ± separate, cuneate to nearly round, 5–12 (–15) × 4–13 mm, nearly as wide as long, divided 1/3 to midrib into 5–10 acute to obtuse teeth, canescent and often short pilose, sparsely pilose on midveins and margins. Cauline leaves (2 or) 3–6. Inflorescences mostly open, flowers arranged individually and in glomerules. Pedicels (1–) 1.5–6 mm. Flowers 9–13 mm diam.; epicalyx bractlets ± lanceolate, 2–3.5 × 0.5–1.5 mm, ± 3/4 length of sepals, entire; hypanthium 1–1.5 × 2–4 mm, ± 1/2 as deep as wide, interior glabrous; sepals ± reflexed, lanceolate, 2.5–4 mm; petals broadly oblanceolate, 3–6 × 2 mm, apex usually rounded; filaments 0.5–1.5 × 0.4–0.6 mm, anthers 0.5–1 mm; carpels (15–) 20–40 (–60); styles 1.3–1.6 mm. Achenes brown, 1–1.3 mm, usually smooth.


Phenology: Flowering summer.
Habitat: Dry meadows, in conifer woodlands
Elevation: 1200–2500 m

Distribution

V9 395-distribution-map.jpg

Calif., Mexico (Baja California)

Discussion

Variety clevelandii occurs primarily on the Peninsular Ranges of Riverside and San Diego counties. Although most populations from Baja California belong to var. brevibracteata, historical collections from northern Baja California by C. R. Orcutt (GH, ND-G, UC), including a syntype of Horkelia clevelandii, have the diagnostic features of var. clevelandii. Populations in San Diego County serve as the sole larval host plant for the federally endangered Laguna Mountains Skipper, Pyrgus ruralis lagunae Scott.

Selected References

None.

Lower Taxa

None.

No values specified.No values specified."dm" is not declared as a valid unit of measurement for this property.

rugose +  and smooth +
1mm +  and 1.3mm +
longer than wide +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
truncate +  and emarginate +
Barbara Ertter +  and James L. Reveal +
(Greene) Rydberg +
compound +  and simple +
opposite +  and alternate +
15 cm150 mm <br />0.15 m <br /> (18 cm180 mm <br />0.18 m <br />) +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
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 />) +
reduced +
free +  and distinct +
open to congested +
Calif. +  and Mexico (Baja California) +
not +  and aggregated +
1200–2500 m +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
flattened +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 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 />) +
Dry meadows, in conifer woodlands +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
crassinucellate +
opposite +  and alternate +
marcescent +
winter-persistent +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
pilose +  and canescent +
divided +, cuneate +  and nearly round +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 1.3 cm13 mm <br />0.013 m <br /> (?) +
oblanceolate +
palmate +  and pinnate +
shallowly toothed +  and deeply divided +
inferior +  and superior +
clustered +, biseriate +  and superposed +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
recurved +  and reflexed +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
2 cm20 mm <br />0.02 m <br /> (?) +
Flowering summer. +
adnate +, free +, connate +  and distinct +
Bull Torrey Bot. Club +
not arillate +
persistent +
free +  and distinct +
lanceolate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
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 +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
Horkelia bolanderi subsp. clevelandii +  and P. bolanderi var. clevelandii +
Horkelia clevelandii var. clevelandii +
Horkelia clevelandii +
variety +
5 +  and 10 +
acute +  and obtuse +
inconspicuous +
enlarged +
green +  and grayish +
hairy +  and inconspicuously conspicuously glandular +