Allium aaseae
South Idaho onion
Family AmaryllidaceaeAlso called Aase's onion
About
Allium aaseae is a small wild onion found only in southwestern Idaho, where it grows on sandy and gravelly ground.
Care at a glance
- Pet safety
- Allium species are toxic to cats and dogs; eating large amounts can cause hemolytic anemia, and cats are most sensitive. General guidance for the genus
- People
- Low toxicity; eating large quantities may cause nausea, vomiting and diarrhoea. General guidance for the genus
- Light
- Full sun to light shade. General guidance for the genus
- Water
- Avoid overly damp ground; wet conditions invite bulb rot and other fungal problems. General guidance for the genus
- Soil
- Sandy or gravelly, well-drained soil, as in its native sites.
- Propagation
- Divide bulb offsets in spring; seed is slower and may take years to germinate. General guidance for the genus
“General guidance for the genus” marks advice sourced for the genus as a whole rather than this species.
Field notes
Morphology
Grows from egg-shaped bulbs up to 2 cm across and bears bell-shaped pink or white flowers up to 10 mm long.
Distribution & habitat
Endemic to southwestern Idaho, recorded from Elmore, Ada, Boise, Gem, Payette and Washington counties, on sandy and gravelly sites at 800–1100 m.
History & etymology
Named after the American botanist Hannah Caroline Aase (1883–1980), who taught at Washington State University in Pullman.
Habitat
- Altitude
- Not recorded
- Altitude class
- —
- Native to
- United States
Cultivation
- Difficulty
- Not recorded
Text adapted from Wikipedia, CC BY-SA 4.0.
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