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hairy goldfields, maritime goldfields, maritime or seaside goldfields, seaside goldfields

crowned goldfields, crowned or royal goldfields, royal goldfields

Habit Annuals, to 25 cm (herbage not sweetly scented). Annuals, to 40 cm (herbage sweetly scented).
Stems

usually prostrate or decumbent, rarely erect, branched proximally, glabrous or hairy at nodes and distally.

erect, branched distally, usually glandular-puberulent (often with longer non-glandular hairs as well).

Leaves

linear to oblanceolate, 10–90 × 2–12 mm, (fleshy) margins entire or lobed, faces glabrous.

linear, 15–60 × 0.5–5 mm, (not fleshy) margins entire or 1–2-pinnately lobed, faces hairy.

Involucres

hemispheric, 4–7 mm.

hemispheric to obconic, 4–7 mm.

Receptacles

conic, muricate, glabrous.

conic, smooth, muricate, or pitted, hairy.

Ray florets

7–12; (corollas light to golden yellow) laminae oblong, 1–3 mm.

6–15; (corollas yellow) laminae linear-oblong or oblong, 3–10 mm.

Phyllaries

6–14, lanceolate to ovate, hairy (especially at margins and midribs).

6–14, lanceolate to ovate, hairy.

Cypselae

gray, linear to narrowly clavate, (2–)2.5–3 mm, ± hairy;

pappi usually of 4–6(–12) brown, lanceolate or subulate, aristate scales plus 4–5+ shorter, laciniate scales, rarely 0.

black, linear to narrowly clavate, to 2.5 mm, hairy;

pappi usually of 5–6+ lanceolate to ovate scales (1–5 uniaristate), sometimes of 4–5 subulate, aristate scales, or 0.

Anther

appendages ± oblong, obtuse (style apices ± deltate, glabrous or with apical tufts of hairs and subapical fringes of shorter hairs).

appendages elliptic, acute (style apices ± deltate with apical tufts of hairs and subapical fringes of shorter hairs).

2n

= 8.

= 8, 10.

Lasthenia maritima

Lasthenia coronaria

Phenology Flowering May–Jul. Flowering Mar–May.
Habitat Seabird roosting sites, coastal headlands, offshore rocks, islands Sunny, open grassy areas
Elevation 0–100 m (0–300 ft) 0–700 m (0–2300 ft)
Distribution
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
Discussion

Lasthenia maritima is a self-pollinating, “guano endemic” of seabird nesting grounds. It is typically found on offshore islands and rocks from the Farallon Islands, California, to the northern tip of Vancouver Island, British Columbia and rarely occurs on the mainland.

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

Pappus, head size, and branching pattern vary in Lasthenia coronaria. Two types of pappi are often found within a head and sometimes in different individuals of a population. The most distinctive feature of this species is its glandular herbage, which produces a characteristic sweet scent not present in any other lasthenia.

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

Source FNA vol. 21, p. 347. FNA vol. 21, p. 347.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Baeriinae > Lasthenia > sect. Ptilomeris Asteraceae > tribe Heliantheae > subtribe Baeriinae > Lasthenia > sect. Ptilomeris
Sibling taxa
L. burkei, L. californica, L. chrysantha, L. conjugens, L. coronaria, L. debilis, L. ferrisiae, L. fremontii, L. glaberrima, L. glabrata, L. gracilis, L. leptalea, L. microglossa, L. minor, L. ornduffii, L. platycarpha
L. burkei, L. californica, L. chrysantha, L. conjugens, L. debilis, L. ferrisiae, L. fremontii, L. glaberrima, L. glabrata, L. gracilis, L. leptalea, L. maritima, L. microglossa, L. minor, L. ornduffii, L. platycarpha
Synonyms Burrielia maritima, Baeria maritima, Baeria minor subsp. maritima, L. minor subsp. maritima Ptilomeris coronaria, Baeria californica, Baeria coronaria
Name authority (A. Gray) M. C. Vasey: Madroño 32: 139. (1985) (Nuttall) Ornduff: Univ. Calif. Publ. Bot. 40: 76. (1966)
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