Sagina maxima |
Sagina maxima subsp. crassicaulis |
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coastal pearlwort, fleshy pearlwort, stick-stem pearlwort, sticky-stem pearlwort, thick-stem pearlwort |
beach pearlwort, coastal pearlwort, fleshy pearlwort, stick-stem pearlwort, stickystem pearlwort, thick-stem pearlwort |
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Habit | Plants annual or perennial, tufted, glabrous or glandular-pubescent. | Plants perennial, glabrous or mostly so. | ||||
Stems | spreading to decumbent or procumbent, much-branched, stout, rarely filiform, distal portion glandular-pubescent. |
spreading, decumbent, or procumbent, glabrous, nodes frequently purple tinged. |
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Leaves | axillary fascicles absent; basal rosette or tuft of ascending leaves usually present; basal blades linear, 10–30 mm, succulent, apex apiculate, glabrous; cauline leaves conspicuously connate basally, forming shallow, scarious cup, blade linear, fleshy, apex apiculate, glabrous; proximal blades 6–15(–20) mm, distal blades rarely subulate, (2.5–)3.5–7(–9) mm. |
basal leaves in rosette of broadly linear, fleshy leaves, or absent with primary or secondary tufts of ascending, linear basal leaves, these usually less fleshy than rosette leaves (rosettes rarely present in plants occurring north of Washington); cauline leaf blades: proximal 6–15 mm, distal 3–5 mm, glabrous. |
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Pedicels | slender to stout, glabrous or glandular-pubescent distally. |
slender to stout, glabrous. |
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Flowers | axillary, 5-merous; calyx bases glabrous or glandular-pubescent; sepals ovate to orbiculate, (2–)2.5–3.5 mm, hyaline margins whitish, occasionally purple tinged on margins or apex, apex obtuse to rounded, glabrous or glandular-pubescent, remaining appressed following capsule dehiscence; petals elliptic to nearly orbiculate, (1.5–)2–2.5(–3) mm, shorter than sepals; stamens 10. |
calyx glabrous; sepals ovate to nearly orbiculate, (2–)2.5–3(–3.5) mm; petals elliptic to orbiculate, (1.5–)2–2.5(–3) mm, slightly shorter than sepals. |
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Capsules | (3–)3.5–4.5 mm, exceeding sepals, dehiscing ca. 1/4 length. |
(3–)3.5–4(–4.5) mm. |
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Seeds | reddish brown, reniform with abaxial groove absent, plump, 0.5 mm, smooth or slightly pebbled. |
smooth to slightly pebbled. |
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2n | = 46, 66. |
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Sagina maxima |
Sagina maxima subsp. crassicaulis |
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Phenology | Flowering spring–early autumn. | |||||
Habitat | Coastal, moist, sandy bluffs, crevices of rock cliffs, at or near high-tide mark, gravelly-sandy beaches | |||||
Elevation | 0-10 m (0-0 ft) | |||||
Distribution |
AK; CA; OR; WA; BC; e Asia
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AK; CA; OR; WA; BC; Asia (Kamchatka) |
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Integradation occurs where the range of subsp. crassicaulis overlaps with that of subsp. maxima. Variation of pubescence in populations on Vancouver Island and the Queen Charlotte Islands ranges from completely glabrous specimens typical of subsp. crassicaulis to individuals with pedicels and calyx bases weakly pubescent, to others with densely pubescent pedicels. Subspecies crassicaulis is far more common than subsp. maxima. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 5, p. 146. | FNA vol. 5, p. 147. | ||||
Parent taxa | Caryophyllaceae > subfam. Alsinoideae > Sagina | Caryophyllaceae > subfam. Alsinoideae > Sagina > Sagina maxima | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | S. crassicaulis | |||||
Name authority | A. Gray: Mem. Amer. Acad. Arts, n. s. 6: 382. (1858) | (S. Watson) G. E. Crow: Rhodora 80: 79. (1978) | ||||
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