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Petals can differ dramatically in different species. The number of petals in a flower may hold clues to a plant's classification. For example, flowers on eudicots (the largest group of dicots) most frequently have four or five petals while flowers on monocots have three or six petals, although there are many exceptions to this rule. [2]
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.
The flowers are formed from five petals; four are upswept or fan-shaped with two per side, and there is one, broad, lobed lower petal pointing downward. This petal may be slightly or much shorter than the others and is weakly differentiated.
The corolla is gametopetalous, the five petals may be joined forming a tube with 4 or 5 lobes (in the flower called tubulose flower or floret, or two groups of petals joined (in the case of bilabiated flowers, with an upper lip formed by 2 petals and a lower lip formed by 3 petals), or they can present a short tube and the limb prolonged ...
The fruit is a pod 15–20 cm (5.9–7.9 in) long and 4–5 cm (1.6–2.0 in) broad. [5] The flowers frequently have a spectacular bloom sometime from February to April, although the trees do not flower every year. [6] Each flower features five petals, two wings, and a keel that resembles the curled beak of a parrot. [7]
The flowers are tube-shaped, yellowish green in colour with fine red stripes and hang singly from upper leaf axils. There are five glabrous sepals 9–10 mm (0.35–0.39 in) long. The five petals are joined, forming a tube 12–14 mm (0.5–0.6 in) long with the tips of the petals rolled back and hairy on the inside surface.
The four petals are clawed and hairless. The flowers have six stamens in two groups, the four closest to the ovary are longer than the two oppositely positioned. Stigmas are two-lobed. The four sepals are erect and form a mock tube around the claws of the petals and are also colored similarly to the petals. [5]
This image is a derivative work of the following images: File:Five_petal_flower_icon.svg licensed with PD-self 2010-12-11T22:39:58Z AnonMoos 618x600 (1470 Bytes) streamlining SVG code, more exact geometry ; 2010-11-14T15:30:22Z AnonMoos 618x600 (3198 Bytes) Simple five-petal flower icon, self-made based on abstract circle geometry.