Stellaria longipes |
Stellaria humifusa |
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Goldie's starwort, long-stalk starwort |
salt-marsh starwort, saltmarsh stitchwort |
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Habit | Plants perennial, forming small to large clumps or mats, or diffuse, from slender rhizomes. | Plants perennial, forming small to large mats or clumps, from slender rhizomes. | ||||
Stems | erect to straggling, branched or not, 4-angled, 3–32 cm, glabrous or softly pubescent, angles not minutely papillate-scabrid. |
decumbent, freely branched, square, 2–20 cm, glabrous, rooting at proximal nodes. |
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Leaves | sessile; blade green, frequently glaucous, 1–3-veined, midrib prominent, lanceolate to linear-lanceolate, widest at base, 0.4–2.6(–4) cm × 1–4 mm, strongly coriaceous or not, base round, margins entire, convex, glabrous or ciliate, apex acute to acuminate, not spinescent, shiny, smooth, glabrous or sparingly villous, base usually glabrous, rarely with few cilia. |
sessile; blade elliptic to elliptic-lanceolate, 0.4–1.5 cm × 1–5 mm, succulent, base cuneate to rounded, margins entire, apex acute to obtuse, glabrous or with few cilia along margins. |
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Inflorescences | with flowers solitary, or terminal, 3–30-flowered (rarely more) cymes; bracts lanceolate, 2–10 mm, herbaceous with scarious margins, or scarious throughout, glabrous or ciliate. |
with flowers solitary in axils of foliage leaves; bracts absent. |
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Pedicels | ascending to erect, straight, 5–30 mm, glabrous or softly pubescent. |
ascending, straight or nearly so, usually 5–10(–30) mm, glabrous. |
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Flowers | 5–10 mm diam.; sepals 5, 3-veined, midrib prominent, lanceolate to ovate-lanceolate, 3.5–5 mm, margins convex, narrow, scarious, sometimes ciliate, apex acute, glabrous or pubescent; petals 5, 3–8 mm, 1–1.5 times as long as sepals; stamens 5–10; styles 3(–6), ascending, curled at tip, ca. 1.5 mm. |
ca. 10 mm diam.; sepals 5, prominently 1–3-veined, lanceolate, 4–5 mm, margins convex, narrow, scarious, apex acute, glabrous; petals 5, 4–6 mm, equaling sepals; stamens 10; styles 3, ascending and outwardly curved, 1–1.5 mm. |
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Capsules | blackish purple or straw colored, ovoid to ovoid-lanceoloid, 4–6 mm, 1.5–2 times as long as sepals, apex broadly acute, opening by 6 valves; carpophore absent. |
straw colored, ovoid, 4–5 mm, equaling sepals, apex obtuse, opening by 6 valves; carpophore absent. |
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Seeds | brown, reniform to globose, 0.6–0.9 mm diam., shallowly tuberculate to smooth. |
pale brown, broadly and obliquely reniform, 0.8–1 mm diam., smooth to slightly rugose. |
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2n | = 52–104, (107). |
= 26. |
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Stellaria longipes |
Stellaria humifusa |
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Phenology | Flowering summer. | |||||
Habitat | Lake shores, beaches, marshes, salt marshes, mainly northern coastal | |||||
Elevation | 0-100 m (0-300 ft) | |||||
Distribution |
AK; AZ; CA; CO; ID; MI; MN; MT; ND; NM; NY; OR; SD; UT; WA; WY; AB; BC; MB; NB; NT; NU; ON; QC; SK; YT; Circumpolar
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AK; ME; BC; MB; NB; NL; NS; NT; NU; ON; PE; QC; YT; SPM; Greenland; arctic Europe; Asia (Russian Far East, Siberia)
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Stellaria humifusa is often confused with S. crassifolia, but has thicker stems and fleshy leaves that wrinkle and tend to turn brownish when dried. Also, in S. crassifolia the long pedicels are very slender and sharply angled below the capsule. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 5, p. 108. | FNA vol. 5, p. 106. | ||||
Parent taxa | Caryophyllaceae > subfam. Alsinoideae > Stellaria | Caryophyllaceae > subfam. Alsinoideae > Stellaria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Alsine longipes | Alsine humifusa, S. humifusa var. marginata, S. humifusa var. oblongifolia, S. humifusa var. suberecta | ||||
Name authority | Goldie: Edinburgh Philos. J. 6: 327. (1822) | Rottbøll: Skr. Kiøbenhavnske Selsk. Laerd. Elsk. 10: 447, plate 4, fig. 14. (1770) | ||||
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