BugwoodWiki Article

wild four-o'clock
Mirabilis nyctaginea (Michx.) MacM.

Overview

Appearance
Mirabilis nyctaginea is a perennial plant that can grow to be 2-4 ft. (0.61-1.2 m) tall, branching occasionally.
Foliage
Leaves are dark green, opposite, cordate, hairless, 4 in. (10.2 cm) long and 3 in. (7.6 cm) across. The upper leaves may be smaller and lanceolate.
Flowers
Flowers are magenta, trumpet shaped, 0.5 in. (1.3 cm) across, and are found in clusters of 3-5. They bloom in early summer and usually only open in the afternoon and at night, closing in the morning.
Fruit
Seeds are greyish brown to reddish brown in color, narrowly obovate, round to club-shaped, smooth, 0.4 in. (1 cm) in length, and have 5 ribs.
Ecological Threat
Mirabilis nyctaginea prefers disturbed areas like pastures, roadsides, and abandoned fields. It is thought to be native to all U.S. states except Alaska, Hawaii, Georgia, Florida, South Carolina, Oregon, and Arizona.

Selected Images


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1550224

wild four-o'clock
Mirabilis nyctaginea
Plant(s)
Theodore Webster
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1556105

wild four-o'clock
Mirabilis nyctaginea
Plant(s)
Ohio State Weed Lab Archive
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1556104

wild four-o'clock
Mirabilis nyctaginea
Root(s)
Ohio State Weed Lab Archive
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1556091

wild four-o'clock
Mirabilis nyctaginea
Stem(s)
Ohio State Weed Lab Archive
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1556084

wild four-o'clock
Mirabilis nyctaginea
Plant(s)
John Cardina
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1550216

wild four-o'clock
Mirabilis nyctaginea
Foliage
Catherine Herms
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wild four-o'clock
Mirabilis nyctaginea
Flower(s)
Theodore Webster
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1556080

wild four-o'clock
Mirabilis nyctaginea
Plant(s)
Ohio State Weed Lab Archive
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1556081

wild four-o'clock
Mirabilis nyctaginea
Plant(s)
Theodore Webster
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1556076

wild four-o'clock
Mirabilis nyctaginea
Fruit(s)
Catherine Herms
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1556077

wild four-o'clock
Mirabilis nyctaginea
Fruit(s)
Ohio State Weed Lab Archive
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5438595

wild four-o'clock
Mirabilis nyctaginea
Seed(s)
Bruce Ackley

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Caryophyllidae
Order: Caryophyllales
Family: Nyctaginaceae
Genus: Mirabilis

Other System Links

Plants: MINY
Bayer: MIBNY
GRIN: 316753
ITIS: 19655
NPDN Pest: PDKADBD
NPDN Host: 36428

Synonyms and Other Names

Other Common Names:
heartleaf four o'clock, heart-leaf four-o'clock, heart-leaved four o'clock, heartleaf four-o'clock, prairie four o clock, wild four-o'clock

Categories

Category: Forbs/Herbs