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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.
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.
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.
A green leaf is green because of the presence of a pigment known as chlorophyll, which is inside an organelle called a chloroplast.When abundant in the leaf's cells, as during the growing season, the chlorophyll's green color dominates and masks out the colors of any other pigments that may be present in the leaf.
The plant is an evergreen, erect shrub, growing to 8 feet (2.4 m) tall and 4 feet (1.2 m) wide. [4] Bartlettina sordida has reddish-purple branches clothed in slightly rough, dark green leaves with prominent venation and paler undersides. The leaves are very large, up to 10 inches (25 cm) longs and 8 inches (20 cm) wide.
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.
Erythranthe lewisii (Lewis' monkeyflower, great purple monkeyflower) is a perennial plant in the family Phrymaceae. It is named in honor of explorer Meriwether Lewis. Together with other species in Erythranthe, it serves as a model system for studying pollinator-based reproductive isolation. It was formerly known as Mimulus lewisii. [2] [3] [4] [5]