Acanthospermum hispidum | bristly starbur

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36.056316, -112.08046
36° 3′ 22.77″ N, 112° 4′ 49.66″ W
36 3 22.77, 112 4 49.66

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If you don't carry a ruler you can use a quarter which is an inch in diameter. Although flowers may be easy to measure, the size often varies. Botanical descriptions often do not include the flower size so some of our size information may be wrong.

When a plant has clusters of small flowers you should measure the size of a flower even though it may be very small. Many plants have flowers that are not obvious and in that case we put them in the "Very Small" category.

Leaf Attachment

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Opposite

Basal

Whorled

Habitat	Description
Alpine	Growing above timberline
Aquatic	Growing in or floating in water
Brush	Scab, chaparral, thicket, clearcut, scrub and similar terms
Cliff	On a cliff, rock wall or similar surface
Desert	Described as a desert, wash, arid or very dry area
Disturbed	Along a road, railroad, burned area, vacant lot and similar places
Epiphyte	Growing on a plant or on decaying plant material
Forest	In a grove, stand or woods or otherwise associated with trees
Grassland	A pasture, prairie, rangeland or steppe
Meadow	An area described as a meadow
Riparian	Near a stream, river, lake, seep or other wet area
Rocky	An outcrop, scree, talus area or other rocky area
Salt Marsh	An alkali or tidal area
Sand	An area described as sandy or a sand dune
Wetland	Marsh, swamp, bog, fen or wetland
Ignore	No habitat specified

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bristly starbur

bristly starbur Aster Family
Acanthospermum hispidum Asteraceae
--show more--

English common names
  •bristly starbur
  •hispid starburr
accepted scientific name
  •Acanthospermum hispidum DC.
rules for finding collection records
  •Acanthospermum hispidum (102)
family name
  • Asteraceae

Image Author: ©2014 Richard Spellenberg
Image License: CC BY-NC-SA
Image Source Image Source

Category: Wildflowers
Flowers: No obvious petals
Petal colors:

Flower size is about 0.6 inches
Number of ray petals: 6 to 8
Leaf: Opposite, Simple
Plant Observed 3rd week of November thru 3rd week of June

How Likely at this Location (20%)

Name Match (100%)

Plant Showiness (54%)

Links to Plant Descriptions
Flora of North America
Instituto Darwinion (17)
WFO Monographs
SEINet (1)

Links to Plant Photos
Starr Environmental (20)
Plants of the World (12)
Wikimedia Commons (6)
Cal Photos (6)
iNaturalist (1)

Where the plant has been found

Credits

Elevation (m) vs. Time of Observation (Flowering)

Credits