Tags: Cycad.
Cycas chamaoensis is named after the only known habitat of this species on and near Khao Chamao mountain in Khao Chamao District Thailand. Stems are arborescent either erect or decumbent. Leaves numerous exceeding 60 per crown 1.2-2.5 meters in length ending in terminal spine. Petiole 30โ60 cm glabrous and partially spiny. Leaflets in 85-155 pairs and lanceolate glabrous and angled forward at 60-70 degrees.