Spineless Acaena
Scientific name: Acaena inermis Hook. f.
Diagnostic features Herbaceous stems to 6cm. Leaflets (7)11-13, bluish grey-green tinged brown or orange, the apical pair 2-8mm, c. as long as wide, with 5-10 teeth. Carpels and stigmas 2. Spines usually absent, sometimes 1-4, not or scarcely barbed.
Chromosome number: (2n=42).
Habitat Introduced-naturalized; grown in gardens and naturalized on barish ground.
Distribution Very scattered in Scotland, Carms; New Zealand.
This species is keyedout on Page 1570: Acaena in the Text Key.
Hybrids - Acaena anserinifolia x Acaena inermis was found in 1967 at Batworthy Brook, Dartmoor, South Devon, and is grown in gardens; most flowers have 2 stigmas but develop spines. |