Xanthisma spinulosum (Spiny Iron Plant) - photos and description

Xanthisma spinulosum

Xanthisma spinulosum

Xanthisma spinulosum

Xanthisma spinulosum
15 cm ruler for scale

Xanthisma spinulosum

Xanthisma spinulosum

ßGeneral: Plants having a woody, branching caudex, and numerous stems. Foliage woolly, greyish-green in colour.

Flowers: Flower heads numerous in small clusters at stem tips, yellow, a flower head was measured to 15 mm diameter.

Leaves: Leaves deeply dissected into narrow lobes with sharp tips. We measured a leaf at 1.5 cm long, lobes measured to 4 mm long and less than 1 mm wide.

Height: Height is listed in Budd's Flora to 40 cm, I measured plants to 25 cm tall.

Habitat: Dry plains and hillsides.

Abundance: Common.

Origin: Native.

Synonym: Listed in some of the field guides we use as Haploppapus spinulosus, and Machaeranthera pinnatifida.

When and where photographed: Photos taken August 25th, prairie hills of the Qu'Appelle River valley, about 30 km north of our home in Regina, SK.