Horkelia cuneata var. cuneata

Synonyms: Potentilla lindleyi var. lepida Crum
Treatment appears in FNA Volume 9. Treatment on page 255. Mentioned on page 175, 254.

Plants ± green; eglandular hairs moderately abundant, spreading to ascending, glandular-hairs usually evident. Stems ascending to erect, (1–) 2–5 dm. Leaflets 5–12 per side, elliptic to obovate or oblanceolate, 5–15 mm, distinctly pinnately veined. Inflorescences ± open; most flowers arranged in glomerules. Pedicels 1–5 mm, proximalmost to 15 mm. Flowers: hypanthium interior rim ± pilose; petals oblanceolate, 2.5–3.5 mm wide; filaments 1.5–3 × 0.5–1 mm. 2n = 28.


Phenology: Flowering spring–summer.
Habitat: Coastal sand dunes and hills, coastal scrub communities
Elevation: 0–400 m

Discussion

Most extant populations of Horkelia cuneata are referable to var. cuneata or intermediates between it and the other two varieties, with the greatest concentrations around Monterey Bay and from Morro Bay to Santa Barbara. At its most distinctive, var. cuneata occurs from Santa Cruz to Los Angeles counties, often sharing habitat with var. sericea though also occurring somewhat more inland, but not as far inland as var. puberula. Although not as endangered as the extremes, unequivocal var. cuneata is far from abundant and shares some of the same threats to its prime coastal habitat.

Selected References

None.

Lower Taxa

None.

"/3lengthofsepals" 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.

rugose +  and smooth +
1.5mm +  and 1.8mm +
longer than wide +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
truncate +  and emarginate +
Barbara Ertter +  and James L. Reveal +
Lindley +
compound +  and simple +
opposite +  and alternate +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
flattened +
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 +
not +  and aggregated +
0–400 m +
lanceolate +  and ovate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
flattened +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1.2 cm12 mm <br />0.012 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 />) +
Coastal sand dunes and hills, coastal scrub communities +
spreading +  and ascending +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 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 />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
crassinucellate +
opposite +  and alternate +
marcescent +
winter-persistent +
separate +  and slightly overlapping +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
sparsely pilose +  and glabrate or sericeous +
elliptic +  and obovate or oblanceolate +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 1.5 cm15 mm <br />0.015 m <br /> (?) +
oblanceolate +
palmate +  and pinnate +
shallowly toothed +  and deeply divided +
inferior +  and superior +
clustered +, biseriate +  and superposed +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
recurved +  and reflexed +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Flowering spring–summer. +
adnate +, free +, connate +  and distinct +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Edwards’s Bot. Reg. +
pilose +  and glabrous +
not arillate +
persistent +
free +  and distinct +
less reflexed +  and spreading +
lanceolate +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 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 +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Potentilla lindleyi var. lepida +
Horkelia cuneata var. cuneata +
Horkelia cuneata +
variety +
10 +  and 15 +
oblanceolate +  and obovate +
inconspicuous +
enlarged +
hairy +  and inconspicuously conspicuously glandular +