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The purple violet is a low-growing perennial herbaceous plant up to 20 cm (8 in) tall. The leaves form a basal cluster; they are simple, up to 10 cm (4 in) broad, with an entire margin and a long petiole. The flowers are violet, dark blue and occasionally white. with five petals.
The metabolism and photosynthetic parameters of Empetrum can be altered in winter-warming experiments. [ 18 ] Empetrum nigrum has allelopathic properties (e.g. hampering seed germination and root extension of other plants) but the strength of these are dependent on the soil type.
Parthenocissus inserta (syn. Parthenocissus vitacea), also known as thicket creeper, false Virginia creeper, woodbine, or grape woodbine, is a woody vine native to North America, in southeastern Canada (west to southern Manitoba) and a large area of the United States, from Maine west to Montana and south to New Jersey and Missouri in the east, and Texas to Arizona in the west.
Asclepias purpurascens, the purple milkweed, is a herbaceous plant species. It is in the genus Asclepias, making it a type of milkweed. It is native to the Eastern, Southern and Midwestern United States similar to the range of the common milkweed (Asclepias syriaca). The plant gets its name from the flowers that first develop a pink color but ...
Solanum umbelliferum is a species of nightshade known commonly as bluewitch nightshade, [1] or bluewitch.It can be found in chaparral habitat and low-elevation oak woodlands in California and parts of Baja California and Arizona.
Lamium purpureum grows with square stems to 5–20 centimetres (2–8 in), [4] rarely 40 cm, in height. [5] The leaves have fine hairs, are green at the bottom and shade to purplish at the top; they are 2–4 centimetres (3 ⁄ 4 – 1 + 1 ⁄ 2 in) long and broad, with a 1–2 cm petiole (leaf stalk), and wavy to serrated margins.
The plant can be grown ornamentally, requiring full sun and modest water. The plant is known to grow in a wide variety of soils and can resist temperatures as low as −10 °C (14 °F) for a few days. Seeds can be harvested from the fruits, and stem cuttings can be used to grow the plant in about 10 to 20 days.
Trillium erectum, the red trillium, [4] also known as wake robin, [5] purple trillium, [6] bethroot, [7] or stinking benjamin, [8] is a species of flowering plant in the family Melanthiaceae. The plant takes its common name "wake robin" by analogy with the European robin , which has a red breast heralding spring.