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harlequin lotus, seaside bird's-foot lotus, seaside bird's-foot-trefoil, seaside lotus, witches teeth

woolly bird's-foot trefoil, woolly lotus

Habit Herbs usually low, 10–40 cm, glabrous; stoloniferous or rhizomatous. Herbs robust, 10–25(–30) cm, densely silvery- to golden-villous or -canescent, sometimes glandular; long-rhizomatous.
Stems

1–20+, often decumbent, sometimes ascending, unbranched, fleshy, base often spongy.

1–5+, erect to ascending, unbranched or branched, not fleshy.

Leaves

stipules lanceolate-ovate to ovate or deltate, 2–8 mm, ± scarious, fragile; petiolate to long-petiolate;

rachis ± straight, 1–4 cm;

leaflets (3–)5–7, petiolulate, blades elliptic to obovate, 6–20 mm, apex obtuse to emarginate, surfaces glabrous.

stipules deltate to lanceolate-ovate, 4–8 mm, scarious, base subauriculate; petiolate;

rachis often curved, 3–7 cm;

leaflets (5–)7–11(–15), petiolulate, blades elliptic to obovate, 7–16 mm, apex obtuse to acute, surfaces villous to canescent.

Peduncles

ascending to spreading, 2.3–9 cm, equaling or longer than subtending leaf, elongating in fruit, glabrous;

bract subtending umbel, 1–3(–7)-foliolate.

ascending, 0.5–4(–4.5) cm, shorter than subtending leaf, little elongating in fruit, villous to canescent;

bract medial to subtending umbel, 3(–5)-foliolate.

Umbels

(2 or)3–9-flowered.

3–8(–10)-flowered.

Flowers

10–16 mm;

calyx reddish, 4.5–6 mm, glabrous, tube cylindric, 2.5–4 mm, lobes subulate to narrowly triangular, 2–2.5 mm, eciliate;

corolla banner yellow, wings and keel pale to dark pink, sometimes whitish, wings fading white, keel pink- to purple-tipped, wings ± equaling or longer than keel, claw longer than calyx tube, banner reflexed to 180°, keel apex acute to subacute.

12–15 mm;

calyx purplish, 5.5–7.5 mm, hairy, tube cylindric, 4.5–6 mm, lobes linear-subulate, 1/2 length of tube, 1–2 mm, densely ciliate;

corolla banner red, wings and keel white, wings longer than keel, claw longer than calyx tube, banner implicate-ascending, keel apex obtuse.

Legumes

± ascending to ± inclined, brown, oblong, turgid, 20–30 × 2–3 mm, thinly leathery, incompletely septate, glabrous.

± ascending to ± inclined, reddish to dark brown, oblong, turgid, 15–35(–40) × 2.5–3(–7) mm, leathery, incompletely septate, glabrous.

Seeds

(8–)10–14(–16), olive brown to brown, oblong, 1–1.5 mm.

3–6+, olive to reddish brown, ovoid, 3 mm.

2n

= 14.

Hosackia gracilis

Hosackia incana

Phenology Flowering spring(–early summer). Flowering late spring–early summer.
Habitat Water or springy areas, shores, coastal meadows, wet meadows or woodlands, sphagnum bogs, pastures, roadside ditches, coastal areas. Dry slopes, open pine forests, open mixed conifer forests.
Elevation 0–200(–700) m. (0–700(–2300) ft.) 800–1700 m. (2600–5600 ft.)
Distribution
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Hosackia gracilis reaches its northern limit in southeastern Vancouver Island and adjacent Gulf islands near Victoria, British Columbia (G. W. Douglas and M. Ryan 2006). Southward it follows the coast of Washington (Grays Harbor County), Oregon (with an inland incursion to Lane County), and California (to San Luis Obispo County), with disjunct populations inland in the foothills of the Sierra Nevada.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Hosackia incana is known from the western side of the Sierra Nevada, from Tehama to Tulare counties.

Lotus neoincanus Munz is an illegitimate name pertaining to Hosackia incana.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Hosackia Fabaceae > subfam. Faboideae > Hosackia
Sibling taxa
H. alamosana, H. crassifolia, H. incana, H. oblongifolia, H. pinnata, H. rosea, H. stipularis, H. yollabolliensis
H. alamosana, H. crassifolia, H. gracilis, H. oblongifolia, H. pinnata, H. rosea, H. stipularis, H. yollabolliensis
Synonyms Anisolotus formosissimus, Lotus formosissimus Lotus incanus
Name authority Bentham: Trans. Linn. Soc. London 17: 365. (1836) Torrey in War Department [U.S.]: Pacif. Railr. Rep. 4(5): 79, plate 4. (1857)
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