Opuntia basilaris var. basilaris (beavertail cactus)

Opuntia basilaris Engelm. & J.M. Bigelow var. basilaris

Opuntia basilaris Engelm. & Bigelow var. basilaris

Opuntia basilaris Engelm. & Bigelow var. heilii S.L. Welsh & Neese

Opuntia basilaris Engelm. & Bigelow var. ramosa Parish

Opuntia basilaris Engelm. & Bigelow var. whitneyana (E.M. Baxter) E.M. Baxter ex W.T. Marsh.

Opuntia brachyclada Griffiths ssp. humistrata (Griffiths) Wiggins & Wolf

Opuntia whitneyana E.M. Baxter

Opuntia whitneyana E.M. Baxter var. albiflora E.M. Baxter

Opuntia basilaris Engelm. & J.M. Bigelow var. heilii S.L. Welsh & Neese

Opuntia basilaris Engelm. & J.M. Bigelow var. ramosa Parish

Opuntia basilaris Engelm. & J.M. Bigelow var. whitneyana (E.M. Baxter) E.M. Baxter ex W.T. Marshall

Beavertail cactus

Kingdom	Plantae	Plants, but not fungi, lichens, or algae
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Magnoliophyta	Flowering plants, also known as angiosperms
Class	Magnoliopsida	Dicotyledons—plants with two initial seed leaves
Subclass	Caryophyllidae	Cacti, many other succulents, carnivorous plants, and leadworts
Order	Caryophyllales	Includes cacti, carnations, amaranths, ice plants, and many carnivorous plants
Family	Cactaceae	Succulent (water-storing) plants, often spiny
Genus	Opuntia	Prickly pears
Species	basilaris	Basal, stretching from the base
var.	basilaris	Basal, stretching from the base

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Opuntia basilaris var. basilaris description by Thomas H. Kent, last updated 25 May 2020.

The sign says Opuntia basilaris var. heilii, but this is an older name. · 9/11/2020 · Garden in the Woods, Framingham, MA

2/17/2007 · Anza-Borrego Desert State Park, CA ID is uncertain

2/28/2010 · Anza-Borrego Desert State Park, CA
≈ 21 × 20" (53 × 49 cm)

The sign says Opuntia basilaris var. heilii, but this is an older name. · 5/22/2010 · Garden in the Woods, Framingham, MA
≈ 20 × 16" (52 × 41 cm)

2/28/2010 · Anza-Borrego Desert State Park, CA
≈ 9 × 6" (23 × 15 cm) ID is uncertain

2/28/2010 · Anza-Borrego Desert State Park, CA
≈ 24 × 16" (62 × 41 cm)

6/4/2009 · Lake Mead Area
≈ 17 × 14" (42 × 36 cm) ID is uncertain

Range: