Oreopanax guatemalensis (Lem. ex Bosse) Decne. & Planch. ex Witte

Oreopanax guatemalensis Dec. & Planch.; Hemsl. Biol Centr. Am. Bot. 1: 573. 1881.
Sciodaphyllum sp. Lemaire, Fl. Serres 3: Misc. No. 44. 1847.
Aralia guatimalensis [sic] Hort.; Lemaire, Fl. Serres 3: Misc. No. 44. 1847.
Sciadophyllum gualemalense Lemaire; Hemsl. Biol. Centr. Am. Bot. 1: 573, as syn. 1881.
Shrub or small tree, sometimes epiphytic, the branchlets stout, terete, rugose, glabrous (the young parts stellate-puberulent) ; leaves simple, the petiole slender, striate, (3-) 7-15 (rarely to 40) cm. long, swollen at the base and the apex, the blade coriaceous, ellipticor obovaterhomboid, up to 35 cm. long and nearly as broad (frequently 15-20 cm. long), obtuse to cordate (usually broadly cuneate) at the base, rounded at the apex, entire and narrowly revolute at the margins, glabrous, the primary' nerves usually 5 (3-7), spreading from the base, prominent, the secondary' nerves few, spreading, the veinlets reticulate, frequently prominulous beneath; inflorescence up to 25 cm. long and broad, the branches often flexuose, with the peduncles densely stellate-puberulent (glabrous in old fruit), the bracts deltoid, 2-7 mm. long, puberulent, the peduncles 3-10 mm. long; staminate heads ovoid, 6-8 mm. long, the bractlets and bracteoles broadly ovate, closely puberulent without, 1-2 mm. long, the flowers glabrous, 25-35 per head; calyx-limb truncate or nearly so; petals oblong, 1.5-2 mm. long; filaments up to 2.5 mm. long, the anthers small; styles 1 or 2, carnose, short; fruits 3-5 per head, subglobose, 5-6 mm. in diameter, the styles 5-7, recurved.
Type locality: Guatemala.
Distribution: Southern Mexico, Guatemala, British Honduras, and western Honduras.

Oreopanax guatemalensis là một loài thực vật có hoa trong Họ Cuồng cuồng. Loài này được (Lem. ex Bosse) Decne. & Planch. mô tả khoa học đầu tiên năm 1854.