Ammannia robusta

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Ammannia robusta
Grand redstem (Ammannia robusta) (26236827096).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Lythraceae
Genus: Ammannia
Species:
A. robusta
Binomial name
Ammannia robusta
Synonyms [2]
  • Ammannia alcalinaBlank.
  • Ammannia coccinea subsp. robusta(Heer & Regel) Koehne
  • Ammannia sanguinolenta subsp. robusta(Heer & Regel) Koehne

Ammannia robusta is a species of flowering plant in the loosestrife family known by the common name grand redstem. It is widespread across much of North America (from British Columbia and Ontario to Guatemala) with additional populations in southeastern Brazil. [3] [4]

Contents

Description

Ammannia robusta grows in moist places, such as ditches and pond margins. It is an annual herb reaching up to 100 cm in height when growing erect. The leaves are up to 8 cm (3 inches) long and linear to lance-shaped. The leaves and stem are green to red. The inflorescences are clusters of up to five flowers in the leaf axils. The flowers are urn-shaped with light lavender petals about 5 mm long and protruding stamens with yellow anthers. The fruit is a spherical capsule about 5 mm wide containing several tiny seeds. [5] [4]

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<i>Mimetes hirtus</i> Species of plant from the family Proteaceae endemic to the southwest Western Cape, South Africa

Mimetes hirtus is an upright, evergreen shrub of 1½–2 m (5–6½ ft) high from the family Proteaceae. It has upright, overlapping, (broadly) lance-shaped leaves, without teeth, but with one thickened pointy tip. It has cylindric inflorescences topped by a pine apple-like tuft of pinkish-brownish, smaller and more or less horizontal leaves. The flowerheads are tightly enclosed by yellow, red-tipped bracts, only the 9–14 long red styles and the whitish silky tips of the perianth sticking out. It is primarily pollinated by the Cape sugarbird. It is an endemic species of the southwest of the Western Cape province of South Africa, and grows in wet zones at the base of south facing mountain slopes. Flower heads may be found from May to November, but peaks in July and August. The species has several vernacular names of which marsh pagoda seems to be used most.

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<i>Mimetes fimbriifolius</i> Species of plant in the family Proteacea endemic to the Table Mountain range in South Africa

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<i>Ammannia multiflora</i> Species of flowering plant

Ammannia multiflora, commonly known as many-flower ammannia and jerry-jerry in Victoria, is a species in the family Lythraceae. It is widespread in Asia, tropical and sub-tropical Africa and Australia. It can be found in shallow water and damp heavy soils.

<i>Leucospermum pluridens</i> Shrub in the family Proteaceae from southern South Africa

Leucospermum pluridens is a large upright evergreen shrub of up to 3 m (9.8 ft) high assigned to the family Proteaceae. It has leathery, oblong to wedge-shaped leaves of about 7½ cm long and 2½ cm wide, deeply incised near the tip with seven to ten teeth. It has initially yellow, later carmine coloured flower heads. The 2 cm long bracts have slender, recurved tips. From the center of the perianth emerge long styles that jointly give the impression of a pincushion. It is called Robinson pincushion in English and Robinson-kreupelhout in Afrikaans. Flowers can be found between September and December. It naturally occurs in the south of South Africa.

<i>Leucospermum pedunculatum</i> Shrub in the family Proteaceae from the Western Cape of South Africa

Leucospermum pedunculatum is an evergreen, low shrub of 15–30 cm (5.9–11.8 in) high spreading from a single stern upright stem, from the family Proteaceae. The powdered or hairless line-shaped to somewhat sickle-shaped leaves are 3–6 cm (1.2–2.4 in) long and 2–5 mm (0.08–0.20 in) wide. The stalked, individually set flower heads are globe-shaped, 2½−3 cm in diameter consist of initially white to pale cream flowers that eventually turn carmine. From the center of the flowers emerge straight styles that jointly give the impression of a pincushion. It is called white-trailing pincushion in English. It flowers from August to January, peaking in September. It is an endemic species that is restricted to a narrow strip on the south coast of the Western Cape province of South Africa.

<i>Leucospermum utriculosum</i> Species of shrub in the family Proteaceae from the Western Cape province of South Africa

Leucospermum utriculosum is a lax, evergreen, upright and arching shrub of 1–2 m high, from the family Proteaceae. It has hairless inverted lance-shaped to oblong leaves tipped with three to five teeth and globe-shaped to flattened light yellow to coppery flowerheads of 5–8 cm (2.0–3.2 in) in diameter. From the center of the flowers emerge almost straight styles that jointly give the impression of a pincushion. It is called Breede River pincushion in English. Although flower heads may occur on and off between May and March, the peak season is from September to November. It is known from the Western Cape province of South Africa.

<i>Vexatorella alpina</i> Shrub in the family Proteaceae from Namaqualand, South Africa

Vexatorella alpina, the Kamiesberg vexator, is an evergreen, upright shrub of up to about 1½ m high, in the family Proteaceae. It has entire, long inverted egg-shaped, bluish grey, leathery leaves of 3–4½ cm (1.2–1.8 in) long and 5–13 mm (0.2–0.5 in) wide on a distinct stalk, and globular flower heads of about 2 cm (0.8 in) across at the tip of the branches, and consisting of pale pink flowers with extended, thick-tipped styles. The plants are flowering from September to November. It is an endemic species that is restricted to the Kamiesberge in South Africa.

<i>Vexatorella obtusata</i> Species of shrub in the family Proteaceae from the Western Cape, South Africa

Vexatorella obtusata is an evergreen shrub, with narrow, leathery leaves and about 2 cm big, globular flowerheads consisting of well scented, creamy pink flowers, from which a long style with a thickened tip extends. Two subspecies are distinguished, both restricted to different parts of the Western Cape province of South Africa. The creeping V. obtusata subsp. obtusata, also known as the Montagu vexator flowers from September to December, and the upright V. obtusata subsp. albomontana, also known as the Witteberg vexator, that has flowers between August and November.

<i>Mairia robusta</i> Perennial plant in the daisy family from South Africa

Mairia robusta is a tufted, white-woolly, perennial, herbaceous plant of up to 30 cm (1 ft) high, that is assigned to the family Asteraceae. It has large, robust, hard and leathery leaves, with a white woolly hairy, nontransparent underside, while the felty hairs on the top are lost with age. Only at a few occasions, flowers have been observed, in June, October and December, always after a fire. The flower heads sit individually at the tip of white-woolly scapes, with 14–16 purplish pink to white ray florets surrounding a yellow disc. M. robusta is an endemic species that is restricted to rocky mountain slopes in the Western Cape province of South Africa.

<i>Mairia hirsuta</i> Perennial plant in the daisy family from 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.

References

  1. Maiz-Tome, L. (2016). "Ammannia robusta". The IUCN Red List of Threatened Species . IUCN. 208. e.T64263777A67728508. doi: 10.2305/IUCN.UK.2016-1.RLTS.T64263777A67728508.en .
  2. The Plant List Ammannia robusta Heer & Regel
  3. Biota of North America Program 2014 county distribution map
  4. 1 2 Graham, S. A. T. 1985. A revision of Ammannia (Lythraceae) in the Western Hemisphere. Journal of the Arnold Arboretum 66(4): 395–420 includes descriptions and distribution maps for all 5 species
  5. Jepson Manual Treatment