E-Flora BC: Electronic Atlas of the Flora of British Columbia

Mirabilis nyctaginea (Michx.) MacMill.
umbrellawort (heartleaf four o'clock)
Nyctaginaceae (Four o'clock family)

Introduction to Vascular Plants

© Barb Scharf  Email the photographer   (Photo ID #81323)

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Distribution of Mirabilis nyctaginea
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Species Information

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General:
Perennial herb from a deep root; stems erect, branched, 30-100 cm tall, glabrous to slightly hairy.
Leaves:
Opposite, broadly egg-shaped to rounded, to 10 cm long, tips pointed, heart-shaped to squared off at base, basically glabrous; stalks 5-20 mm long.
Flowers:
Inflorescence of umbels grouped in branched clusters; flower stalks hairy; bracts of inflorescence saucer-shaped, about 1 cm wide and papery in fruit, bracts 5, about 2/3 fused, base short-hairy, lobes glabrous; perianth white or pale pink, 8-10 mm long, broadly funnel-shaped with widely-flaring 5-lobed limb.
Fruits:
Achenes, broadly club-shaped, 4-6 mm long, 5-angled, wrinkled or warty, usually densely hairy.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry waste places in the montane zone; rare in SC BC, known only from Salmon Arm and Spences Bridge; introduced from C and E North America.

Source: The Illustrated Flora of British Columbia

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Allionia nyctaginea Michx.
Mirabilis collina Shinners
Oxybaphus nyctagineus (Michx.) Sweet

Taxonomic and Nomenclatural Links

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General References