Ayenia euphrasiifolia


Cat. Pl. Cub., 29. 1866.

Common names: Dwarf or eyebright ayenia
Synonyms: Ayenia tenuicaulis Urban
Treatment appears in FNA Volume 6. Treatment on page 204.

Subshrubs, decumbent to ascending, 0.1–0.4 m. Stems hairy, hairs mostly simple, often retrorse, sometimes also fasciculate and/or stellate. Leaves: petiole (0.1–)0.2–0.5 cm; blade orbiculate to ovate, unlobed, 0.4–1.4 × 0.1–0.7 bifurcate, and fasciculate; petal claws 2–3 mm, lamina rhombic to ± triangular, 1 × 1 mm, base attenuate on claw, margins entire, apex notched, surfaces slightly hairy abaxially, hairs minute, simple, or glandlike, abaxial appendage cylindric to ± clavate, 0.5 mm; androgynophore (1–)2.2–3 mm; stamen filaments present; stigmas exserted. Capsules oblate to subspheric, 4–5 × 4–5 mm, sparingly stellate-pubescent, prickles 0.3–0.5 mm. Seeds 2 mm, densely tuberculate.

Phenology: Flowering and fruiting year-round.
Habitat: Marl over limestone, pinelands, sandy scrub, rocky flats, waste places
Elevation: 0–10 m


V6 364-distribution-map.jpg

Fla., West Indies (Bahamas, Cuba).


In Florida, Ayenia euphrasiifolia is found in the Florida Keys, south and east of Lake Okeechobee, and near Tampa Bay on the mainland.

Three subspecies, two of them endemic, are recognized in Cuba but are not recognized here; they are based on rather weak morphological characters (habit, vestiture, and

leaf texture) ostensibly correlated with vegetation type and soil substrate. If subspecies are accepted, plants in the flora area are subsp. euphrasiifolia.

Selected References


Lower Taxa

... more about "Ayenia euphrasiifolia"
Laurence J. Dorr +
Grisebach +
Dwarf or eyebright ayenia +
Fla. +, West Indies (Bahamas +  and Cuba). +
0–10 m +
Marl over limestone, pinelands, sandy scrub, rocky flats, waste places +
Flowering and fruiting year-round. +
Cat. Pl. Cub., +
Ayenia tenuicaulis +
Ayenia euphrasiifolia +
species +