Iva axillaris (Poverty-weed) - photos and description





Flower heads in top most leaf axils on both stems



Female flowers in above photo

Arrow pointing to male flower in flower head in above photo

Male and female flowers in above photo

Male and female flowers in above photo


General: Decumbent to erect plants, rarely branching, forming large colonies spreading by rhizomes. Stems with very short hairs.

Flowers: Flower heads appear singly in axils, pendant. Flower heads are yellowish-green in colour, we measured a flower head at 4 mm long. Flower heads contain pistillate and staminate flowers, the flowers 2 mm long. The pistillate flowers appear a few days before the staminate flowers.

Leaves: Leaves are narrowly lanceolate, stalkless, opposite towards the bottom and alternate towards the top. Leaf highlighted in photo above was 26 mm long and 7 mm wide. Leaves greyish-green in colour, rough-hairy with very short hairs.

Height: Height listed in Budd's Flora to 50 cm tall, we measured plants to 26 cm tall.

Habitat: Saline clay flats, roadsides.

Abundance: Common.

Origin: Native.

When and where photographed: Photos taken June 13th on weedy grassland, Regina, SK, and July 14th and July 16th, prairie on edge of saline wetland, out 40 km east of our home in Regina, SK.