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Datura stramonium, known by the common names thornapple, jimsonweed (jimson weed), or devil's trumpet, [2] is a poisonous flowering plant in the Daturae tribe of the nightshade family Solanaceae. [3] Its likely origin was in Central America , [ 2 ] [ 4 ] and it has been introduced in many world regions.
Inflorescence with buds and two open flowers. M. atropurpureum is a tropical herbaceous dicot belonging to the family Fabaceae. It rapidly develops dense, hairy, dark green vines about 5 mm in diameter, [5] until it reaches its mature size around 120 cm. [3] The vines have bright green trifoliolate leaves, which are roughly 2–7 cm long with smooth hairs on the underside. [6]
The flowers are erect or spreading (not pendulous like those of Brugmansia), trumpet-shaped, 5–20 cm long, and 4–12 cm broad at the mouth; colours vary from white to yellow and pale purple. The fruit is a spiny capsule , 4–10 cm long and 2–6 cm broad, splitting open when ripe to release the numerous seeds .
Alternanthera brasiliana, also known as large purple alternanthera, metal weed, bloodleaf, parrot leaf, ruby leaf, Brazilian joyweed, purple alternanthera, purple joyweed, is a flowering plant of the amaranth family that is native to the forests of South America and as well as Central America, ranging from northeastern Mexico to northeastern Argentina.
The flowers are green to white, followed by berries which ripen through red to purple to almost black which are a food source for songbirds such as gray catbird, northern mockingbird, northern cardinal, and brown thrasher, as well as other birds and some small non-avian animals (i.e., for species that are unaffected by its mammalian toxins).
Eutrochium purpureum, commonly known as purple Joe-Pye weed [4] or sweetscented joe pye weed, [5] is an herbaceous perennial plant in the family Asteraceae. It is native to eastern and central North America , from Ontario east to New Hampshire and south as far as Florida , Louisiana , and Oklahoma .
Echium plantagineum is a winter annual plant growing to 20–60 cm tall, with rough, hairy, lanceolate leaves up to 14 cm long. The flowers are purple, 15–20 mm long, with all the stamens protruding, and borne on a branched spike.
The plant is predisposed to moist and rich soil, but can be found growing in a wide array of soil types. [6] It is naturalized throughout warm temperate and subtropical regions of the world. Although it is often considered a noxious weed, I. purpurea is also grown for its attractive purple and white flowers, and has many cultivars.