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[3] [4] [5] The toxicity is a result of the grayanotoxins contained by the flowers and leaves. If flowers and leaves are ingested by humans, symptoms may include salivation, headaches, vomiting, cardiac failure, and death. [4] Cattle, goats, horses, dogs, and cats may suffer similar symptoms after ingesting the leaves or flowers of this plant. [6]
[25] [10]: 100 Cornus florida is the state tree and flower of Virginia, [26] the state tree of Missouri, and state flower of North Carolina. [27] [28] It was used to treat dogs with mange, which may be how it got its name. [28] The red berries are not edible, despite some rumors otherwise. [29]
Eupatorium capillifolium, or dog fennel (also written "dogfennel"), is a North American perennial herbaceous plant in the family Asteraceae, native to the eastern and south-central United States. [3] It is generally between 50 cm and 2 meters tall with several stems that fork from a substantial base. [ 4 ]
Strychnos nux-vomica, the strychnine tree, [2] also known as nux vomica, poison fruit, semen strychnos, and quaker buttons, is a deciduous tree native to India and to southeast Asia. It is a medium-sized tree in the family Loganiaceae that grows in open habitats. Its leaves are ovate and 5–9 centimetres (2–3.5 in) in size. [3]
Leaves are greyish and softly haired, lanceolate to oblong. Reddish-purple funnel-shaped flowers bloom between May and September. The plant owes its common and scientific name to the long greyish leaves that are reminiscent of a dog's tongue and were once given as a remedy for dog bites.
The fully grown tree has a rounded crown, and commonly measures 7–12 metres (20–40 feet) tall, exceptionally 45 m (150 ft). [7]The leaves are up to 50 centimetres (20 inches) long, alternate, long-petioled, two or three times compound (odd-pinnate); the leaflets are dark green above and lighter green below, with serrate margins.
However, on larger trees symptoms occur earlier and start as a thin crown with small leaves. A crown of a tree refers to any branches or foliage that are growing out from the trunk. Therefore, thinning of the crown would mean reduced branches and leaves. The trees eventually start yellowing and defoliating followed by fast wilting and dying of ...
This plant is a small tree of 5–10 m (16–33 ft) high with numerous bristle-covered branches. The leaves are big and round, and are up to 44 cm (17 in) long and 45 cm (18 in) wide, with cordate or rounded base, acute apex, and 5–7 main veins from the leaf base.