Key to Sabulina

View taxon page for Sabulina

(For a list of species in Sabulina, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Annual, not 

cespitose 

Having a densely clumped, tufted, matted, or cushion-like growth form.

, not mat-forming

2. Inflorescence ± glandular-hairy; 

leaf 

Organ arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets).

(5)10–30 mm; seed 1.3–2 mm

3. Leaves ± evenly spaced, thread-like, generally 0.3 mm wide, flexible, becoming curled; seeds red-brown, margin thin, wing-like ..... S. douglasii

3' Leaves mostly near base, lance-linear, 1–1.5(2.5) mm wide, rigid, 

recurved 

Gradually curved downward or backward.

; seeds brown to black-brown, margin thick, not wing-like ..... S. howellii

2' Inflorescence glabrous; leaf 1.5–7(10) mm; seed 0.4–1 mm

4. Petals < sepals or 0; plant 1–5 cm; leaf, sepal with generally 1, often faint vein ..... S. pusilla

4' Petals 1–1.8 × sepals; plant (1)2–20(25) cm; leaf abaxially with 1 faint vein or 3 veins with 1 prominent, sepal with ± 3 faint veins or 3 or 5 prominent ribs

5. Petals 1.5–1.8 × sepals; leaf vein1, faint abaxially; sepal with 3 faint veins, lateral pair rarely extending to tip ..... S. californica

5' Petals 1–1.3 × sepals; lf veins 3, 1 prominent abaxially; sepal with 3 or 5 prominent ribs, lateral pair converging with midrib at tip ..... S. cismontana

1' Perennial herb, cespitose to mat-forming

6. Plant ± densely cespitose, stem 

decumbent 

lying mostly flat on the ground but with tips curving up.

to 

erect 

Upright; vertically oriented.

; taproot < 1.5 mm diam

7. Petals ± 0.8–1 × sepals; plant glandular-hairy ..... S. rubella

7' Petals 0; plant glabrous ..... S. stricta

6' Plant mat-forming, rhizomes elongate and stem or stolons trailing; taproot > 3 mm diam

8. Plant densely glandular-hairy ..... S. nuttallii

9. Leaf recurved; sepal ribs (1)3, ± equally prominent ..... var. fragilis

9' Leaf straight or ± recurved; sepal ribs 1 or 3, lateral pair 0 or less prominent

10. Petals 0.7–0.9 × sepals; KR, CaRH, SNH, SnGb, SNE ..... var. gracilis

10' Petals 1.1–1.6 × sepals; NW, CaRH, c SNH, Wrn ..... var. gregaria

8' Plant generally glabrous or ± sparsely glandular-hairy especially in inflorescence; stem, leaves ± glabrous

11. Sepals 5–6 mm, in flower generally 3-ribbed; petals 0.7–0.9 × sepals ..... S. decumbens

11' Sepals 2.5–4.8 mm, in flower faintly 1–3-veined; petals 1.4–2.2 × sepals

12. Plant glaucous; flower stem from branching rhizomes; leaves > 

internodes 

Segment of an axis (generally a stem) between successive positions (nodes) from which one or more structures (especially leaves, buds, branches, or flowers) arise.

; 

axillary 

Pertaining to or within an axil, especially a leaf axil.

leaves well developed ..... S. rosei

12' Plant gray-green; flower stem from stolons; leaves often < internodes; axillary leaves weakly developed ..... S. stolonifera

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