Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

NYCTAGINACEAE

FOUR O'CLOCK FAMILY

Richard Spellenberg

Perennial, shrub, tree, glabrous or hairy
Stem often forked
Leaves opposite, sessile or petioled, pairs generally unequal; blade generally entire
Inflorescence generally forked; of spikes, clusters, or umbels, each unit sometimes with a calyx-like involucre
Flower bisexual, radial; perianth of 1 whorl, petal-like, bell- to trumpet-shaped, base hardened, tightly surrounding ovary in fruit, lobes 4–5, generally notched to ± bilateral; stamens 1–many; ovary superior (appearing inferior because of hardened perianth base), style 1
Fruit: achene or nut, smooth, wrinkled, or ribbed
Genera in family: 30 genera, 300 species: warm regions, especially Am; some ornamental (Bougainvillea ; Mirabilis , four o'clock).

SELINOCARPUS

MOONPOD

Perennial, shrub
Stem forked
Leaf sessile or petioled; blade ± fleshy
Inflorescence: bracts 1–3, free, not forming an involucre; flowers generally solitary in axils
Flower nocturnal or cleistogamous; open perianth trumpet-shaped; stamens 4–8; stigma ± spheric, generally exserted
Fruit: wing thin, membranous
Species in genus: 8 species: North America., Africa
Etymology: (Greek: parsley fruit)
(Fowler & Turner 1977 Phytologia 37(3);177–208)

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