Trifolium andersonii
Anderson's clover, fiveleaf clover
erect-ascending, cespitose, mat-forming, branched;
from deep taproot-like crown.
palmate;
stipules ovate or lanceolate, 0.5–1.5 cm, margins entire, apex long-acuminate;
petiole 1–5 cm;
petiolules to 0.5 mm;
leaflets (3–)5, blades obovate, 0.5–2.2 × 0.2–1.2 cm, base cuneate, veins obscured by pubescence, margins entire, apex rounded or acute, apiculate, surfaces canescent.
axillary, 10–20-flowered, depressed-globose, 1–2 × 1–2.3 cm;
involucres formed of connate, narrow, membranous bracts, to 0.5 mm.
1–14 cm.
absent;
bracteoles absent.
10–17 mm;
calyx campanulate, 9–11 mm, pilose, veins 10, tube 4–5 mm, lobes equal, subulate, plumose, orifice open;
corolla white or pink, 10–17 mm, banner ovate-oblong, 12–19 × 3–5 mm, apex rounded, retuse.
ellipsoid, 4–5 mm.
1 (or 2), tan or brown, irregularly ovoid, 1.6–2 mm, smooth, glossy.
Trifolium andersonii
Subspecies 3 (3 in the flora).
Trifolium andersonii encompasses three moderately well separable subspecies, with subsp. andersonii the more northern form in the range of the species, subsp. monoense in the southwestern portion of the range, and subsp. beatleyae in the eastern portion of the range (J. M. Gillett 1972). Intermediates between the latter two (and overlap in their ranges) make differentiation between them somewhat problematic, which prompted R. C. Barneby (1989) to combine them as var. beatleyae.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaflet blades 0.5–1.1 cm, surfaces with appressed hairs to l mm; 3000–4000 m. | subsp. monoense |
1. Leaflet blades 0.9–2.2 cm, surfaces with spreading hairs 1.5–2 mm; 800–2500 m. | → 2 |
2. Peduncles l–3 cm, not overtopping leaves. | subsp. andersonii |
2. Peduncles 4–14 cm, overtopping leaves. | subsp. beatleyae |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
