Horkelia fusca var. filicoides
Horkelia fusca var. fusca
Diamond Lake horkelia, pinewoods horkelia
horkelia, pinewoods horkelia, tawny horkelia
(1–)1.5–3.5(–4) dm.
3–4(–5) dm.
green, 4–9(–12) cm;
leaflets 4–8 per side, cuneate-obovate, 5–12 × 2–8 mm, ± 1/2 as wide as long, divided ± 1/2+ to midrib into 3–9 teeth or lobes, surfaces not obscured, sparsely short-villous to glabrate.
green, (4–)8–20 cm;
leaflets 6–10 per side, cuneate-obovate, 5–18(–20) × 4–15 mm, 1/2 to nearly as wide as long, divided ± 1/2 to midrib into 5–8 teeth or lobes, surfaces not obscured, ± sparsely short-villous.
2–4(–6);
leaflets of proximalmost 2–5 per side.
(2 or)3–5;
leaflets of proximalmost 3–6 per side.
green, open, comprising 1/3–1/2 of stem, flowers usually arranged individually, glandular hairs sometimes red-septate;
bracts acuminate-lobed, not obscuring pedicels and flowers at maturity.
reddish purple, congested to open, comprising less than 1/4 of stem, usually composed of 10–20-flowered glomerules, rarely flowers arranged individually, glandular hairs often ± red-septate;
bracts acute- to acuminate-lobed, not obscuring pedicels and flowers at maturity.
epicalyx bractlets 1–2 mm;
hypanthium 1–2 × 2.5–3.5 mm;
petals 2–4(–5) mm;
filaments 0.5–1 mm, ± as wide as long, anthers 0.5 mm;
styles 1 mm.
epicalyx bractlets 1.5–3 mm;
hypanthium 1.5–3 × 2.5–4 mm;
petals 3–5 mm;
filaments 0.5–1.3 mm, longer than wide, anthers 0.5–0.6 mm;
styles 1–1.5 mm.
1.2–1.5 mm.
1.6–1.8 mm.
Horkelia fusca var. filicoides
Horkelia fusca var. fusca
Variety filicoides is known from the southern Cascade Range of southwestern Oregon, primarily in open lodgepole pine forests north and west of Crater Lake. This is the only variety in which the flowers are usually arranged individually rather than clustered into glomerules, at least in fully expanded inflorescences; some populations out of the core range have more congested inflorescences and are transitional to var. parviflora in this regard.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Variety fusca occurs in the Cascade Ranges on both sides of the Columbia River Gorge, primarily around Mount Hood, Oregon, and Mount Adams, Washington. Pending further analysis, all collections of the species from the Cascade Range in Washington are treated here as var. fusca, including some with leaflets and/or petals in the size range of var. parviflora. Plants from lower elevations tend to have greener, more openly branched inflorescences and narrower, more finely divided leaflets; this expression provides the type of Horkelia tenuisecta.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
WA
