Cestrum SanLuis
SolanaceaePotato Family


  - understory shrub les than 2 m tall
  - seasonal forest habitat
  - white tubular flowers
  - white fruit

Description: Shrub to 1.5 m; twigs round, slender, pubescent when young, forming a cup around petiole insertion, but lateral bulbs absent; leaves distichous, solitary, glabrous, petiole to 3 cm, blade to 3 x 11 cm, lanceolate, acuminate, base rounded to abruptly cuneate, decurrent on petiole, midvein keeled above, lateral veins 7-12, weakly raised above and below, texture membranous, no distinct odor; inflorescences axillary, 1-2 cm, with about 6-9 flowers, each flower with a leaf-like elliptic bract about 3 x 10 mm; flower glabrous, sessile, cream to cream-yellow, calyx 3 mm, with lobes 0.6 mm, glabrous outside, lobes pubescent inside, corolla tube 2 cm, lobes 5-6 mm, pubescent outside along margins, glabrous inside, filaments free for 4-5 mm, tooth weak to prominent with short hairs, style 20 mm, sparse pubescent apically; fruit to 8 x 11 mm, white, spongy, not juicy, with up to 6 seeds.

Similar species
Cestrum fragile
Cestrum racemosum

Local distribution: Seasonally dry forests on Pacific slope at 50-1000 m.

Species range: Costa Rica

Habitat: Understory and light gaps in moist forest.

Greta oto

Phenology: Flower: jun. Fruit: nov.

Pollinators: Moths

Seed dispersers: Birds

Comments: Characteristic of the understory in seasonal forest of the Pacific slope below Monteverde. This species has been identified by various taxonomists as C. alternifolium, C. fragile, C. glanduliferum, and C. nocturnum, but does not seem to match any of them in the Flora of Nicaragua treatment.

Credits: Images and text copyright 2002-2006 by William A. Haber, http://efg.cs.umb.edu/