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It has simple opposite leaves, which are 10 to 40 millimeters long, and only 0.5 to 2 millimeters wide. The flowers are racemose on the branches. They are borne on 1 to 8 millimeter long pedicles. Each flower is bilaterally symmetrical, with five 20 to 38 millimeter long petals fused into a corolla tube, and four stamens.
Dalea purpurea is a species of flowering plant in the legume family known as purple prairie clover. [5] Native to central North America, purple prairie clover is a relatively common member of the Great Plains and prairie ecosystems. It blooms in the summer with dense spikes of bright purple flowers that attract many species of insects.
The leaves are each made up of hairless oval leaflets measuring up to 1.3 centimeters long. The inflorescence is a cone-shaped or cylindrical spike of many purple flowers with pointed green bracts between them. Blooming occurs in summer. [1] [3] The flowers are pollinated by bumblebees. [4] The seeds can persist in a soil seed bank for 8 years. [4]
The flowers are borne on 10 to 20 millimeter long pedicels. Each flower is bilaterally symmetrical, with five 10 to 15 millimeter long petals fused into a corolla tube, and four stamens. The fruit is a round 3 to 7 millimeter long dry capsule that splits open when ripe.
The erect, branching stem is purple, smooth, hollow, and sturdy. The compound leaves are bipinnate , with 3 to 5 leaflets per leaf. The total width of a lower leaf may be up to 2 ft (61 cm), and the leaflets are 0.75–4.5 in (1.9–11.4 cm) long and 0.5–2.5 in (1.3–6.4 cm) across.
Buchnera americana is a perennial flowering plant with underground rhizomes and an above-ground stem. The stem of the plant is usually covered with trichomes (small hair-like projections), and can grow 40 to 80 cm (16 to 31 in) tall.
This species was first formally described by Robert Chinnock in 1979 and the description was published in Journal of the Adelaide Botanic Garden. [5] [4] The specific epithet (purpurascens) is derived from the Latin word purpureus meaning "purple" [6]: 643 with the suffix -escens meaning "becoming" [6]: 135 referring to the sepals which become more purplish as they age.
Hamamelis virginiana is a small, deciduous tree or shrub growing up to 6 metres (20 ft), rarely to 10 m (33 ft) tall, often with a dense cluster of stems from its base. The bark is light brown, smooth, scaly, inner bark reddish purple.