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Tecoma stans is a semi-evergreen shrub or small tree, growing up to 10 m (30 ft) tall. [1] It features opposite odd-pinnate green leaves, with 3 to 13 serrate, 8- to 10-cm-long leaflets. The leaflets, glabrous on both sides, have a lanceolate blade 2–10 cm long and 1–4 cm wide, with a long acuminate apex and a wedge-shaped base.
The trees grow to a height of 15–25 m (49–82 ft). The characteristic bark is smooth, powdery and greenish yellow, although new twigs are purple, flaking later to reveal the characteristic yellow. It is one of the few trees where photosynthesis takes place in the bark. Straight, white spines grow from the branch nodes in pairs.
Gelsemium sempervirens can grow to 3–6 m (10–20 ft) high when given suitable climbing support in trees, with thin stems. The plant is perennial. [10] The leaves are evergreen, lanceolate, 5–10 cm (2–4 in) long and 1–1.5 cm ( – in) broad, and lustrous, dark green. The flowers are borne in clusters, the individual flowers yellow ...
Xanthorhiza apiifolia L'Hér. Xanthorhiza simplicissima ( yellowroot) is the only member of the genus Xanthorhiza, and one of very few genera in the family Ranunculaceae with a woody stem (the other notable example being Clematis ). It is native to the eastern United States from Maine south to northern Florida and west to Ohio and eastern Texas.
Lamium galeobdolon (gah-lay-OB-dough-lon), the yellow archangel, is a species of flowering plant in the mint family Lamiaceae. It is native to Europe and western Asia but it is widely introduced in North America and elsewhere. It is the only species in the genus Lamium with yellow flowers.
Liriodendron tulipifera is generally considered to be a shade-intolerant species that is most commonly associated with the first century of forest succession. In Appalachian forests, it is a dominant species during the 50–150 years of succession, but is absent or rare in stands of trees 500 years or older.
Iris pseudacorus, the yellow flag, yellow iris, or water flag, is a species of flowering plant in the family Iridaceae. It is native to Europe, western Asia and northwest Africa. Its specific epithet pseudacorus means "false acorus", referring to the similarity of its leaves to those of Acorus calamus (sweet flag), as they have a prominently ...
Melilotus officinalis can be an annual or biennial plant, and is 120–180 centimetres (4–6 ft) high at maturity. [2] Leaves alternate on the stem and possess three leaflets. Yellow flowers bloom in spring and summer and produce fruit in pods typically containing one seed. Seeds can be viable for up to 30 years.
Impatiens pallida, with the common names pale jewelweed, [2] pale touch-me-not, [3] or yellow jewelweed, [4] is a flowering annual plant in the family Balsaminaceae native to Canada and the United States. It grows in moist to wet soils, generally alongside the closely related Impatiens capensis, producing flowers from midsummer through fall.
Betula alleghaniensis is a medium-sized, typically single-stemmed, deciduous tree reaching 60–80 feet (18–24 m) tall (exceptionally to 100 ft (30 m)) [2] [6] with a trunk typically 2–3 ft (0.61–0.91 m) in diameter, making it the largest North American species of birch. [2] [7] Yellow birch is long-lived, typically 150 years and some old ...
