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Whilst L. birnbaumii itself is harmless to plants, the high moisture conditions in which it fruits can invite a host of other fungi and mold species which may harm the plant and result in root rot. In this regard L. birnbaumii can serve as a useful indicator to help ensure plants remain healthy.
It is a vigorous, spreading perennial plant growing from woody rhizomes to a maximum height of 15 cm (5.9 in). Its leaves are located along the stem, the basal leaves dying off as the plant bolts. They are sometimes slightly toothed or lobed near the tips. The inflorescences hold one or more flower heads which are each about 1 cm (0.4 inches) wide.
Hedge bindweed is an herbaceous perennial that twines in a counter-clockwise direction to a height of up to 3 m (10 ft). The leaves are arranged alternately on the spiralling stem; they are dull green above and paler below, simple and sagittate (arrowhead shaped), 5–10 cm (2–4 in) long and 3–7 cm (1 + 1 ⁄ 4 – 2 + 3 ⁄ 4 in) broad.
This is a list of plants organized by their common names. However, the common names of plants often vary from region to region, which is why most plant encyclopedias refer to plants using their scientific names , in other words using binomials or "Latin" names.
The alternate leaves are usually divided into a petiole and a leaf blade. The smooth or hairy leaf blade is simple or one to two-pinnate. The leaflets are lobed three to eleven times. The leaf margin is smooth to roughly serrated. The lower leaves are 38 to 127 centimetres (15 to 50 inches) long and 25 to 64 cm (10 to 25 in) inches wide.
Flower head Leaves. This plant is a taprooted perennial herb producing rough-haired stems usually one to three meters tall. The leaves are variable in shape and size, being 4 to 60 cm (1 + 1 ⁄ 2 to 23 + 1 ⁄ 2 in) long and 1 to 30 cm (1 ⁄ 2 to 11 + 3 ⁄ 4 in) wide. They are hairy, smooth-edged or toothed, and borne on petioles or not.
Silphium perfoliatum, the cup plant [2] or cup-plant, is a species of flowering plant in the family Asteraceae, native to eastern and central North America. It is an erect herbaceous perennial with triangular toothed leaves, and daisy-like yellow composite flower heads in summer. [3] The specific epithet perfoliatum means "through the leaf." [4]
During the year, the plant grows about 30 cm (12 in) and produces 6-7 leaves. Its single leaves, usually arrow-shaped, are up to 30 cm (12 in) long. In the wild, the leaves are dark green and without variegation. Cultivated varieties have leaves in various shades of green, often light green and usually with different types of lighter tannins.