Horkelia fusca var. filicoides
Horkelia fusca var. tenella
Diamond Lake horkelia, pinewoods horkelia
delicate horkelia, pinewoods horkelia, tawny horkelia
(1–)1.5–3.5(–4) dm.
(0.6–)1–4(–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, (3–)4–18(–27) cm;
leaflets 8–15 per side, cuneate to flabellate, 5–10(–15) × 2–10(–20) mm, 3/4 as wide to wider than long, divided 3/4+ to midrib into 5–15 lobes or teeth, surfaces not obscured, sparsely short-hirsute to glabrate.
2–4(–6);
leaflets of proximalmost 2–5 per side.
2–4(or 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.
green to ± reddish, congested to open, comprising no more than 1/4 of stem, composed of 3–10(–20)-flowered glomerules, glandular hairs sometimes red-septate;
bracts acute- to acuminate-lobed, sometimes partly 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 1.5–2 mm;
hypanthium 1.5–2 × 2–3 mm;
petals 2–3(–4) mm;
filaments 0.2–0.5 mm, wider than long, anthers 0.5 mm;
styles 1 mm.
1.2–1.5 mm.
1.2–1.5 mm.
= 28.
Horkelia fusca var. filicoides
Horkelia fusca var. tenella
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.)
Plants of var. tenella have the most deeply and consistently divided leaflets, and the variety is the only one with such leaflets that occurs in California. It is most common in open lodgepole pine forests at the southern end of the Cascade Range in northeastern California. Populations outside this core area tend to intergrade with var. brownii or var. parviflora. A collection from west-central Tehama County (Bracelin 405, UC) matches this variety, but from an atypical habitat well outside the core range.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
CA
