Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Click images to enlarge and show more photo credit.

Key to Gelsemium

Gelsemiaceae

Gelsemium

Copy permalink to share

(c) Hattaway, Robert
1 Sepals acuminate apically, persistent on the fruit; capsule elliptical, 1.0-1.6 cm long, 6-8 mm broad, the tapering tip bearing a definite beak 2.4-4.2 3 mm long; seeds wingless; flowers odorless (rarely fragrant), usually golden-yellow; leaf with small patch of spreading trichomes at extreme base on the lower surface
(c) Hattaway, Robert
1 Sepals obtuse to broadly acute, not persistent on the fruit; capsule oblong, 1.5-2.5 cm long, 8-12 mm broad, very abruptly narrowed to a beak 1.5-2 mm long; seeds with a prominent membranous wing sharply differentiated from the body of the seed; flowers fragrant, usually lemon-yellow; leaf glabrous (or slightly roughened) on the lower surface