Compilation
Croton butaguensis

A tree up to 30 m tall, dioecious or sometimes monoecious; crown much-branched, spreading, rounded.Bole up to 1.8 m in circumference.Bark smooth to closely reticulate, pale grey or greyish-brown, slightly corky.Young twigs, petioles and inflorescence axes densely, evenly or sparingly greyish appressed or patent stellate-pubescent, later glabrescent and becoming dark grey-brown and lenticellate.Stipules 5–7 mm long, linear to filiform-setaceous, soon falling.Petioles 3–12 cm long.Leaf blades 6–18 × 4–14 cm, ovate, acuminate at the apex, shallowly crenate-serrate to subentire on the margins, cordate or subcordate at the base with a pair of shortly stipitate to subsessile basal discoid glands on the lower surface, chartaceous, sparingly appressed stellate-pubescent to fimbriate-lepidote above, and sparingly to densely so or patent stellate-tomentose beneath; 5–7-nerved from the base, lateral nerves in 4–9 pairs, ± prominent beneath.Racemes up to 35 cm long, terminal, usually androgynous, sometimes male or female; bracts shorter than the stipules but otherwise resembling the stipules.Flowers fragrant.Male flowers: pedicels 0.5–1 cm long; sepals 5, 3 × 2–2.5 mm, ovate, stellate-lepidote without, pubescent within, pale green; petals 5, 3–3.5 × 1.5–2 mm, oblanceolate-oblong, subglabrous without, villous within and on the margin, pale creamy-yellow in colour; disk glands rounded, pilose; stamens 15–20, filaments 4 mm long, villous below, anthers c. 1 mm long; receptacle densely villous.Female flowers: pedicels 2–5 mm long, not or scarcely extending in fruit, stout, densely stellate-pubescent; sepals 5, 3–3.5 × 1.5–2 mm, ovate-lanceolate, evenly stellate-lepidote without, sparingly stellate-pubescent within, grey-green; petals 0 or 5, 0.5–1 mm long, linear to subulate, subglabrous; disk 5-lobed, the lobes truncate, pubescent; ovary 2 mm in diameter, trigonous or quadrangular, densely lepidote; styles 3–4, 3 mm long, spreading, 2-partite with the segments filiform-linear, minutely puberulous.Fruits 0.8–1 × 0.8–1.5 cm, trilobate or quadrilobate, loculicidal or septicidal, densely to evenly scurfily stellate-pubescent, pale greyish-green.Seeds 7 × 4 mm, ellipsoid, rugulose, grey; caruncle 4.5 × 4 mm, waxy.