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A. distachyos, habit, showing aerial and submerged parts. It is an aquatic plant growing from a tuberous rhizome.The often mottled leaves float on the water surface from a petiole up to 1 m long from the rhizome; the leaf blade is narrow oval, 6–25 cm long and 1.5–7.7 cm broad, with an entire margin and parallel veins.
Acmispon glaber (previously Lotus scoparius) (common deerweed, deer weed, deervetch, California broom or western bird's-foot trefoil) is a perennial subshrub in the family Fabaceae (pea family). [2] The plant is a pioneer species found in dry areas of California , Arizona , and Mexico .
The first leaves, near the base of the plant, are toothed and roughly diamond-shaped, 3–7 cm long and 3–6 cm broad. The leaves on the upper part of the flowering stems are entire and lanceolate-rhomboid, 1–5 cm long and 0.4–2 cm broad; they are waxy-coated, unwettable and mealy in appearance, with a whitish coat on the underside.
Polanisia dodecandra is a species of flowering plant in the Cleomaceae family, [3] known by the common name redwhisker clammyweed [4] or clammyweed, and there are three subspecies of Polanisia. Usually annual , occasionally perennial , Polanisia is native to North America , and is found throughout much of Canada and the United States .
Stachytarpheta jamaicensis is a species of plant in the family Verbenaceae, native throughout the Caribbean, [3] including Florida. [4] It has many common names including blue porterweed , blue snake weed , bastard vervain , Brazilian tea , Jamaica vervain , [ 5 ] light-blue snakeweed , [ 6 ] and, in St. Croix , worryvine . source?
Visnaga daucoides is a species of flowering plant in the carrot family known by many common names, including toothpick-plant, [1] toothpickweed, [2] bisnaga, khella, or sometimes bishop's weed. It is native to Europe, Asia, and North Africa, but it can be found throughout the world as an introduced species .
Flower. Alisma plantago-aquatica is a hairless plant that grows in shallow water, consists of a fibrous root, several basal long stemmed leaves 15–30 centimetres (6–12 inches) long, and a triangular stem up to 1 metre (3 + 1 ⁄ 2 feet) tall.
The base of the leaf is heart-shaped and its apex round or slightly notched. Both surfaces of the leaves are covered with soft, greyish hairs. The flowers are borne singly on a pedicel usually 5–60 mm (0.20–2.36 in) long, the sepals joined at the base with lobes 2.5–4 mm (0.098–0.157 in) long. The petals are pale greenish-yellow and ...