Enum. Diagn. Cact. 165 (1837) APNI
Erect shrub 1–2(–4) m high, trunk often well-developed. Terminal cladodes compressed, thickish (1.5–2.5 cm through), more or less orbicular, 16–42 cm long and wide, dull, strongly glaucous; areoles 25–45 per cladode face, c. 2.5–5.5 cm apart, filled with brown wool and yellow to brown glochids (these occasionally bristle-like, to 15 mm long); spines spreading, 1–12 per areole, rarely absent, to 5 cm long, 0.8–1.3 mm wide near base, yellow, ageing white. Flowers 5–9 cm diam.; petaloids spreading, yellow, the outer often reddish; stamens yellow; style and stigmas whitish; hypanthium barrel-shaped, tuberculate. Fruit barrel-shaped, 5–8.5 cm long, 4–6 cm diam., deeply depressed at apex when young, purple, juicy. Flowers late spring–summer.
*EGL, *GipP, *Gold, *HNF, *LoM, *MuF, *MuM, *MSB, *NIS, *OtP, *VRiv, *VVP, *Wim. Also naturalised in WA, SA, Qld, NSW. Indigenous to central Mexico. Occasional on roadsides and in dry woodland communities, chiefly in north-western and north-central areas (e.g. Merbein, Charlton, Echuca). Well-established in the Maldon-Castlemaine area.
|Bioregion||Occurrence status||Establishment means|
|Victorian Volcanic Plain||present||naturalised|
|Murray Scroll Belt||present||naturalised|
|Northern Inland Slopes||present||introduced|
|East Gippsland Lowlands||present||naturalised|
|New South Wales|