Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera

Key to Nyctaginaceae

View taxon page for Nyctaginaceae


Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Stigma inflorescence or fruit generally winged

2. Fruit wings thick or 0, not surrounding fruit body; flowers maturing outer before inner or ± simultaneously; receptacle conic, ± smooth ..... ABRONIA

2' Fruit wings translucent, surrounding fruit body; flowers maturing 1 side of inflorescence before the other; receptacle flat or rounded, studded with peg-shaped pedicel-like projections ..... TRIPTEROCALYX

1' Stigma ± spheric, generally ; inflorescence a head or umbel or not; fruit generally unwinged

3. Bracts 3 or 5(9), generally at least partially fused, forming a calyx-like 

4. Flowers strongly , in 1 involucre 3, blooming ± together; bracts 3; fruit bilateral ..... ALLIONIA

4' Flowers  or ± bilateral, in 1 involucre 1–16, generally not blooming together; bracts 5(9); fruit radial ..... MIRABILIS

3' Bracts 1–3, free, not forming an involucre

5. Stem , > 7 mm diam; fruit glabrous, with 10 inconspicuous ribs ..... ANULOCAULIS

5' Stem  to erect, generally << 5 mm diam; fruit hairy or not, with (4)5 prominent ribs or wings

6. Perianth tube 30–170 mm, trumpet-shaped; fruit , glabrous, 5–10 mm ..... ACLEISANTHES

6' Perianth tube < 5 mm, bell-shaped; fruit club-shaped, glabrous or hairy, < 4 mm ..... BOERHAVIA



Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, [accessed on ]

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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