Minuartia tenella

(J. Gay) Mattfeld

Bot. Jahrb. Syst. 57(Beibl. 126): 29. 1921.

Common names: Slender stitchwort slender sandwort
Basionym: Greniera tenella J. Gay Ann. Sci. Nat., Bot., sér. 3, 4: 27. 1845,
Synonyms: Alsinopsis tenella (J. Gay) A. Heller Arenaria macra A. Nelson & J. F. Macbride Arenaria stricta Michaux Arenaria stricta subsp. macra (A. Nelson & J. F. Macbride) Maguire Arenaria stricta var. puberulenta (M. Peck) C. L. Hitchcock
Treatment appears in FNA Volume 5. Treatment on page 135. Mentioned on page 118, 124.

Plants annual. Taproots filiform. Stems erect, green, 5–25 cm, stipitate-glandular distally or throughout, internodes of stems 2–5 times as long as leaves. Leaves overlapping proximally, often connate basally, with loose, scarious sheath 0.2–0.5 mm; blade straight to outwardly curved, green, flat to concave, prominently 1-veined abaxially, narrowly lanceolate to subulate, 5–17 × 0.5–1.5 mm, flexuous, margins not thickened, often scarious, sometimes ciliate or stipitate-glandular, apex purple, apiculate, navicular, shiny to dull, glabrous or stipitate-glandular; axillary leaves often present. Inflorescences 7–25+-flowered, open cymes; bracts subulate to lanceolate, scarious. Pedicels 0.2–1.5 cm, stipitate-glandular. Flowers: hypanthium disc-shaped; sepals prominently 3-veined, ovate to narrowly so (herbaceous portion narrowly ovate to lanceolate), 2.5–3 mm, not enlarging in fruit, apex green to purple, acute to acuminate, not hooded, densely stipitate-glandular; petals obovate, 1.5–2 times as long as sepals, apex rounded, entire. Capsules on stipe ca. 0.1 mm, ovoid, 3–4 mm, longer than sepals. Seeds brown, suborbiculate with radicle prolonged to rounded beak, somewhat compressed, 0.4–0.6 mm, tuberculate; tubercles low, rounded, elongate. 2n = 24.

Phenology: Flowering spring–summer.
Habitat: Coastal bluffs and forest openings
Elevation: 0-700 m


Although B. Maguire (1951, 1958) included Minuartia tenella within his concept of Arenaria stricta (M. michauxii), we see little more than a superficial resemblance between the taxa as we circumscribe them.

Selected References


Lower Taxa

... more about "Minuartia tenella"
Richard K. Rabeler +, Ronald L. Hartman +  and Frederick H. Utech +
(J. Gay) Mattfeld +
Greniera tenella +
Slender stitchwort +  and slender sandwort +
B.C. +, Oreg. +  and Wash. +
0-700 m +
Coastal bluffs and forest openings +
Flowering spring–summer. +
Bot. Jahrb. Syst. +
Alsinopsis tenella +, Arenaria macra +, Arenaria stricta +, Arenaria stricta subsp. macra +  and Arenaria stricta var. puberulenta +
Minuartia tenella +
Minuartia +
species +