Plant · GBIF taxon 5384070
Beavertail Pricklypear
Opuntia basilarisAlso known as Beavertail Cactus, Beavertail Prickly Pear
Beavertail pricklypears form low-growing, spreading clumps of flattened, teardrop-shaped pads that resemble beaver tails. Unlike many other cacti, they lack long prominent spines, relying instead on dense cushions of microscopic barbed bristles called glochids for defense. In mid to late spring, brilliant magenta flowers bloom along the pad edges, attracting native bees and desert pollinators before ripening into dry fruits.
SucculentDesertFlowering
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & prey
- Photosynthetic
Predators
- Mojave desert tortoise
- Desert woodrat
- Black-tailed jackrabbit
ThreatsUrban development, habitat degradation, climate extremes
HabitatsDeserts, dry rocky slopes, canyon walls
Life span30–50 years
Size / weightNot available
Classification
- FamilyCactaceae
- SpeciesOpuntia basilaris
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Glochids easily embed in skin; wild fruits have toxic look-alikes, so never ingest wild plants.
- Why it is dangerous
- Microscopic barbed bristles called glochids break off into skin easily, causing persistent itching, inflammation, and severe mechanical irritation.
- How to recognize a risky encounter
- Look for low grey-blue clumps of spineless pads densely dotted with tiny reddish-brown woolly tufts.
- What to do
- Maintain a safe distance along trails, and use adhesive tape or fine tweezers if glochids contact skin.
Responsible observation
- Spring Blooms: Look for brilliant magenta flowers lining upper edges of pads from March to May.
- Distance Precautions: Avoid brushing against pads because barbed glochids detach with minimal friction.
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