Guettarda oxyphylla Urb.

Guettarda oxyphylla Urban, Ark. Bot. 20A^ 56. 1926
A small tree with slender branches, the young branchlets appressed-pubescent, with short or elongate internodes, the older ones glabrate, terete, dark-ferruginous; stipules triangularlanceolate, long-acuminate, 6-7 mm. long, pubescent dorsally; leaves opposite, the petioles rather slender, 0.6-2 cm. long, densely pilose; leaf-blades elliptic to oblong-lanceolate, 6-14 cm. long, 2-5 cm. wide, gradually acute-acuminate or merely acute, obtuse to attenuate at the base, chartaceous, green and dull above, pilose with long or very short hairs, the venation slender and prominulous, beneath paler, densely pilose with long or rather short, soft, ochraceous hairs, the slender costa prominent, the lateral nerves 10-13 on each side, slender, prominent, ascending at an angle of 40-50 degrees, the veins prominent and closely reticulate, the margin plane; inflorescences axillary, on slender peduncles 3-6.5 cm. long, cymose, with 1 1 or fewer flowers, the branches 1 cm. long or less, the bracts lanceolate to triangular, 3-4 mm. long; calyx tubularcampanulate, truncate, 2.5 mm. long, densely pilose; corolla yellowish-white, 18 mm. long, the tube rather stout, gradually dilated upward, densely retrorse-pilose, the 4 lobes oval, 4 mm. long; anthers linear, 3 mm. long; style 13 mm. long, appressed-pilose ; ovary 2-celled.
Type locality: Calcareous cliffs, Morne Brigand, Thibaud, Departement dti Nord, Haiti, altitude 500 meters.
Distribution: Mountains of Haiti, at 1450 meters or less.

Guettarda oxyphylla là một loài thực vật có hoa trong họ Thiến thảo. Loài này được Urb. mô tả khoa học đầu tiên năm 1926.