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Some apply it to the leaflets of a pinna, especially the leaflets of bipinnate or tripinnate leaves. [7] Others also or alternatively apply it to second or third order divisions of a bipinnate or tripinnate leaf. [8] It is the ultimate free division (or leaflet) of a compound leaf, or a pinnate subdivision of a multipinnate leaf.
This is an incomplete list of plants with trifoliate leaves. Trifoliate leaves (also known as trifoliolate or ternate leaves) are a leaf shape characterized by a leaf divided into three leaflets. Species which are known to be trifoliate are listed here.
Globe chamomile is a straggly, branching annual plant with a strong smell, growing up to 2 ft (60 cm) tall. The bipinnate or tripinnate leaves have a fleshy midrib which widens at the base. The globular flowers are borne in paniculate flower heads. There are no ray florets and the disc florets are yellow. [4]
Cyanothamnus inflexus is an erect, woody shrub that grows to a height of about 2 m (7 ft) and a width of about 3 m (10 ft). The leaves are pinnate, 6–25 mm (0.2–1 in) long and 6–35 mm (0.2–1 in) wide in outline on a petiole 3–10 mm (0.1–0.4 in) long.
Chart illustrating leaf morphology terms. The following terms are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflets). [1]
Tripinnate (tripinnata) – pinnately compound in which each leaflet is itself bipinnate. Truncate (truncata) – with a squared off end. Unifoliate (unifoliata) – with a single leaf. Leaf Base Shape: Semiamplexicaul – the leaf base wraps around the stem, but not completely. Leaf Blade Apex:
The leaf stems are mostly smooth, with only sparse, dark-brown or black scales. Both subspecies of Gymnosphaera capensis have a slender, erect trunk that is up to 4.5 metres (15 ft) tall (occasionally even 6 metres (20 ft)) and about 15 cm in diameter. [4] The fronds are tripinnate, born on long stipes (stalks), and 2–3
The plants grow to 40–70 cm (16–28 in), with tripinnate leaves that may be curly. The small white flowers form small umbels, 2.5–5 cm (1–2 in) across. The fruit is about 1 cm long, oblong-ovoid with a slender, ridged beak.