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Hemerocallis citrina can reach a height of 90–120 centimetres (35–47 in). It has bright green, linear arching leaves about 40 cm long. Flowers are lemon yellow, trumpet-shaped, showy and very fragrant, about 15 centimetres (5.9 in) in diameter.
Potentilla simplex is a familiar plant with prostrate stems that root at nodes, with yellow flowers and 5-parted palmately pinnate leaves arising from stolons (runners) on separate stalks. Complete flowers bearing 5 yellow petals (about 4–10 mm long) bloom from March to June. It bears seed from April to July.
Tansy: corymb of flower heads with recognisable Fibonacci spirals entered by ants. Tansy is a flowering herbaceous plant with finely divided compound leaves and yellow, button-like flowers. It has a stout, somewhat reddish, erect stem, usually smooth, 50–150 cm (20–59 in) tall, and branching near the top.
In the second year, it grows a flowering stem to 75 cm (30 in) tall with sparser leaves and flat-topped 3–10 cm diameter umbels with numerous 2 mm diameter yellow to yellowish-green flowers. [9] [11] [12] The seeds are ovoid, 2–3 mm long, with prominent style remnants at the apex. One of the compounds of the essential oil is apiole. The ...
Melilotus officinalis, known as sweet yellow clover, yellow melilot, ribbed melilot [2] and common melilot, is a species of legume native to Eurasia and introduced in North America, Africa, and Australia.
Lamium galeobdolon, 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. Another common name for this species is golden dead-nettle.
Hypericum perforatum, commonly known as St John's wort (sometimes perforate St John's wort or common St John's wort), is a flowering plant in the family Hypericaceae.It is a perennial plant that grows up to 1 metre (3 ft 3 in) tall, with many yellow flowers that have clearly visible black glands around their edges, long stamens (male reproductive organs), and three pistils (female reproductive ...
It is an annual or biennial herb from 10 to 50 centimetres (3.9 to 19.7 inches) in height (rarely to one metre), with trifoliate leaves and small yellow flowers borne in dense racemes. [4] Similar to Melilotus altissima Thuill. in general. The flowers are 2 – 3 mm long and produce a hairless pod of similar length. [5]