| Echinodorus trialatus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Alismatales |
| Family: | Alismataceae |
| Genus: | Echinodorus |
| Species: | E. trialatus |
| Binomial name | |
| Echinodorus trialatus Fassett in Rhodora 57, 179, 1955 | |
Echinodorus trialatus is a type of plant. In Rataj's taxonomy, E. trialatus is in Section Paniculati, Subgenus Echinodorus.
Leaves with blades about as long as the winged petioles and tapering into them, long tapered at the tip, with the upper pair of veins parallel to the midrib and leaving it at some distance from the base, 30 – 45 cm long. Blades longly oval, on both ends regularly narrowed, or lanceolate with 3 - 5 veins, without pellucid markings, 17 – 25 cm long x 2.5 – 5 cm wide.
Stem erect, along the whole length distinctly alate (3 - winged), 30 – 70 cm long. Inflorescence usually racemose, rarely branched in the lower whorl, having 6 - 13 whorls. Bracts longer than the pedicels with flowers, 1.5 – 2 cm long having 19 - 21 distinct ribs. Flowers sessile or subsessile on pedicels 2 – 4 mm long. Sepals about 5 mm long, with usually 18 ribs, corolla white. Aggregate fruit globular, 5 – 7 mm in diameter. Stamens usually 18, anthers 1.5 mm long, as long as the filaments. Achenes 2.5 – 3 mm long x 1 - 1.2mm wide, distinctly ribbed only in the lower part of the body, the upper third without ribs, lateral glands absent.
Panama, Colombia & Venezuela normally growing submersed.
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Parsonsia curvisepala is a woody vine of the family Apocynaceae, found in Malaysia, New Guinea, the Philippines, the Solomon Islands, and Sulawesi. This species is second only to Parsonsia alboflavescens in its variability and wide geographic distribution.
Mairia coriacea is a perennial plant assigned to the family Asteraceae. It has broad, tough and leathery, evergreen leaves. These have a narrowed foot and an entire margin or a few shallow, irregular teeth. They grow in a rosette directly from the rootstock. The plant produces flower heads with one whorl of white to mauve ray florets around many yellow disc florets, with one or few on top of a dark reddish, woolly stalk. Flower heads appear after the overhead vegetation burnt down, often destroying the leaves in the process. It can be found in the southern mountains of South Africa's Western Cape province. It is called leather leaves in English.
Mairia petiolata is a tufted, variably hairy, perennial plant of up to 15 cm (6 in) assigned to the family Asteraceae. Its leaves are in a ground rosette, and have a stalk of mostly 2–5 cm long and an inverted egg-shaped to elliptic, 61⁄2–9 cm (2.6–4.6 in) long and 2–3 cm wide leaf blade, with a toothed margin. It mostly has two flower heads at the tip of the branches of each erect, dark reddish brown scape. The flower heads have a bell- to cup-shaped involucre that consists of 20–24, purplish, overlapping bracts in 3–4 whorls. These protect 12–16 pink, ray florets, surrounding many yellow disc florets. This species was only seen flowering once, in December. It is known from one location in the Langeberg, Western Cape province of South Africa.
Mairia hirsuta is a tufted perennial, herbaceous plant of up to 40 cm high, that is assigned to the family Asteraceae. Most of its narrow to broad elliptic or inverted egg-shaped leaves are part of the basal rosette, have margin that is rolled under, with rounded or pointy teeth or with some peg-like extensions, lightly woolly on the upper surface and densely woolly on the underside, but always the green remains visible. Flower heads have been found from July to November, mostly after a fire or when the soil has been disturbed. The species can be found in the southern mountains of the Western Cape province of South Africa.