Slender Stitchwort (Sabulina macra)
Description
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.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Caryophyllales
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Family: Caryophyllaceae
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Genus: Sabulina
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