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FNA | Family List | FNA Vol. 4 | Nyctaginaceae | Acleisanthes

6. Acleisanthes wrightii (A. Gray) Bentham & Hooker f. ex Hemsley, Biol. Cent.-Amer., Bot. 3: 6. 1882.

Wright’s trumpets

Pentacrophys wrightii A. Gray, Amer. J. Sci. Arts, ser. 2, 15: 261. 1853

Plants herbaceous, overall pubescence mixture of capitate-glandular hairs 0.2-0.3 mm, and white, capitate, shorter hairs 0.1-0.2 mm. Stems erect or ascending to decumbent, much-branched, 10-40 cm, puberulent to glabrate. Leaves yellowish green, petiolate, those of pair subequal; petiole 1-15 mm, puberulent; blade oval to ovate-lanceolate or suborbiculate, 5-35 × 3-20 mm, base slightly unequal and obtuse to rounded or acute, margins crispate, apex apiculate and obtuse or infrequently acute, hirtellous to puberulent. Inflorescences solitary flowers, sessile or with pedicel to 1 mm; bracts linear-subulate, 2-8 mm, hirtellous to puberulent. Flowers: chasmogamous perianth 2.5-5 cm, puberulent to hirtellous, tube 1-1.5 mm diam., limbs 10-15 mm diam., stamens 5; cleistogamous perianth 3-8 mm, hirtellous, stamens 2(-5). Fruits prominently 5-ribbed and deeply 5-sulcate, ribs broad, smooth, each terminating in hemispheric, glandular tubercle, tubercule oblong, truncate at both ends, 5-9 mm, puberulent.

Flowering spring-fall. Various soils on calcareous substrates in grasslands or shrublands; of conservation concern; 200-1000 m; Tex.; Mexico (Coahuila).


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