Flora of North America species comparison

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Horkelia sect. Parryae
Habit Plants forming rosettes or open mats, green, conspicuously glandular, ± resinously aromatic.
Stems

prostrate to erect, (0.5–)1–3(–3.5) dm.
Basal leaves

planar;

stipules usually entire, rarely deeply 2-lobed;

leaflets 3–7 per side, separate, divided ± 1/4–3/4 to midrib into 5–15 teeth or lobes not restricted to apex.
Inflorescences

open, flowers arranged individually.
Pedicels

becoming reflexed or recurved, 3–15 mm.
Flowers

epicalyx bractlets linear-lanceolate to elliptic or ovate, 0.3–1.5 mm wide, entire;

hypanthium interior glabrous;

sepals acute;

petals white, elliptic or oblong to obovate, apex obtuse to rounded or slightly emarginate;

filaments white, glabrous, anthers at least slightly longer than wide;

carpels 3–4 or (17–)20–50.
Achenes

1.3–2.2 mm, finely reticulate or coarsely rugose.

Horkelia sect. Parryae
Distribution
from FNA
CA
Discussion

Species 2 (2 in the flora).

Section Parryae accommodates two localized species with open inflorescences in which the slender pedicels become reflexed to recurved at or soon after flowering. P. A. Rydberg (1908c) included both species in his group Cuneatae.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Petals 4–7 mm; leaflets divided ± 1/4 to midrib; carpels (17–)20–50; foothills of w Sierra Nevada.
H. parryi
1. Petals 2–3 mm; leaflets divided 1/2–3/4 to midrib; carpels 3 or 4; San Bernardino Mountains.
H. wilderae
Source FNA vol. 9, p. 257.
Parent taxa Rosaceae > subfam. Rosoideae > tribe Potentilleae > Horkelia
Subordinate taxa
H. parryi, H. wilderae
Name authority Ertter & Reveal: Novon 17: 316. (2007)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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