Felicia cana

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Felicia cana
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Felicia
Section: Felicia sect. Felicia
Species:
F. cana
Binomial name
Felicia cana
Synonyms
  • Aster hyssopifolius var. canus

Felicia cana is a low and slender shrublet of up to 15 cm (12 ft) high, covered in white felty hairs, that is assigned to the family Asteraceae. It has alternately arranged leaves, and flower heads of about 16 mm (0.63 in) across, with 3–4 whorls of involucral bracts, and about 20 blue purple ray florets, surrounding many yellow disc florets in the centre. Very characteristic for the species are also the middle-long hairs with forked tips on the surface of its fruits. It is an endemic species that is restricted to a zone along the southern coast of the Western Cape province of South Africa. [2]

Contents

Description

Felicia cana is an upright, richly branched shrub of up to 15 cm (6 in) high. All parts except for the florets are covered in dense white felty hairs. The leaves are arranged alternately, are succulent, inverted lance-shaped in outline, up to 112 cm (0.6 in) long and 112 mm (0.06 in) wide, set at an oblique upward angle. [2]

The flower heads sit individually at the tip of an inflorescence stalk of up to 4 cm (1+35 in) long. Just beneath the flower heads the indumentum is less dense. The involucre that envelops the florets is up to 4 mm (0.16 in) in diameter, and consists of three to four whorls of bracts that are lance-shaped. The bracts in the outer whorl are about 2.5 mm (0.098 in) long and 1 mm (0.039 in) wide, and covered in white felty hairs. The bracts in the inner whorl are about 3.2 mm (0.13 in) long and 1 mm (0.039 in) wide and these tend to loose the indumentum, and have a resinous vein along the middle. [2]

About twenty female ray florets have blue violet straps of about 6 mm (0.24 in) long and 1 mm (0.04 in) wide. In the center of the head are many yellow, bisexual disc florets of about 212 mm (0.1 in) long. In the center of the corolla of each disc floret are five anthers merged into a tube, through which the style grows when the floret opens, hoovering up the pollen on its shaft. The style in both ray- and disc florets forks, and at the tip of both style branches is a broadly triangular appendage. [2]

Surrounding the base of the corolla are many white, deciduous pappus bristles of about 212 mm (0.1 in) long, that are strongly serrated near the base and weakly near the top. The eventually yellowish brown, dry, one-seeded, indehiscent fruits called cypselae are inverted egg-shaped, about 2 mm (0.079 in) long and 1 mm (0.039 in) wide, with a prominent, ridge along the margin, and scales on its surface. The middle long hairs that also occur scattered along its surface have a forked tip, but the hairs along the edge are not widened near their tips. [2]

F. cana is closely related to F. hyssopifolia, but differs from it by its dense covering of white felty hairs, the hairs on the surface of the cypselae that fork at their tips and the slender habit. [2]

Taxonomy

Augustin Pyramus de Candolle was the first to recognise the distinctiveness of this species from Felicia hyssopifolia , and he described it in 1836 as Felicia cana, based on a collection made by Ecklon in 1805 near Swellendam. William Henry Harvey regarded it as a variety of Aster hyssopifolia (now Felicia hyssopifolia), making the combination Aster hyssopifolia var. canus. Jürke Grau agreed with De Candolle in his 1973 Revision of the genus Felicia, and restored the taxon to a species within the genus Felicia. [2] [3]

Distribution and conservation

Felicia cana occurs in the Western Cape province of South Africa between Riversdale and Bredasdorp. [2]

The continued survival of this species is considered to be of least concern, because it has a stable population. [4]

Related Research Articles

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<i>Felicia brevifolia</i> A shrublet in the daisy family from South Africa and Namibia

Felicia brevifolia is an evergreen, richly branched shrub of up to 112 m (5 ft) high, that is assigned to the family Asteraceae. It has elliptic to wedge-shaped leaves, of between 12 and 112 cm long, green to gray-green, many with several teeth. The flower heads have about fifteen blue-violet ray florets, encircling many yellow disc florets. This species grows in southern Namibia and the west of South Africa.

<i>Felicia rosulata</i> A perennial plant in the daisy family from Southern Africa

Felicia rosulata is a hairy, perennial, herbaceous plant of up to 30 cm (1 ft) high, that is assigned to the family Asteraceae. It has a rosette of elliptic 8 cm × 2 cm leaves with 3–5 veins, and long, hairy stalks, each topped with one floral head consisting of about thirty middle blue ray florets encircling many yellow disc florets. It can be found in the mountains of Lesotho, eastern South Africa and Eswatini.

<i>Felicia amoena</i> A perennial or biennial plant in the daisy family from South Africa

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

Mairia burchellii is a tufted perennial plant of up to 15 cm (6 in) assigned to the family Asteraceae. It has narrow leaves of up to 5 mm (0.20 in) wide, with single main vein and an entire margin. Flower heads only occur after a fire has destroyed the standing vegetation, mostly in November or between February and June. The flower heads sit individually or with a few on the tip of a purplish stalk, with a few narrow bracts, and consist of a row of pinkish ray florets around many yellow disc florets. It can be found in the southwest of the Western Cape province of South Africa.

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

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, 612–9 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.

<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.

Felicia clavipilosa is an upright, richly branched shrub of up to 60 cm (2 ft) high, that is assigned to the family Asteraceae. It has alternately arranged leaves, and flower heads with 3–4 whorls of involucral bracts with many yellow disc florets in the centre. Very characteristic for the species are the short club-shaped hairs on its fruits. There are two subspecies. Subsp. clavipilosa has narrowly lance-shaped entire leaves with one vein and pale mauve ray florets. Subspecies transvaalensis has lance-shaped leaves with one or three veins and white ray florets. The species occurs in southern Africa, with subsp. clavipilosa having a western distribution in Zambia, Zimbabwe, Namibia, Botswana and South Africa, and subsp. transvaalensis restricted to the east, from Zimbabwe, through Botswana to South Africa. The subspecies transvaalensis is sometimes called pokkiesblom in Afrikaans.

<i>Felicia mossamedensis</i> A plant in the daisy family from southern Africa

Felicia mossamedensis or yellow felicia is a well-branched, roughly hairy, annual or perennial plant of up to 30 cm (1 ft) high, assigned to the family Asteraceae. It has alternately arranged, seated, flat to slightly succulent, broad-based, entire, blunt tipped leaves. The flower heads sit individually on top of a stalk of up to 8 cm (3 in) long, have an involucre of three whorls of bracts, many yellow ray florets and many yellow disk florets. It can be found in southern Africa, in Zimbabwe, Mozambique, Botswana, Eswatini, South Africa and on the coast of Angola.

Felicia smaragdina is an annual, bristly and glandular, much branched plant of up to 40 cm high, that has been assigned to the family Asteraceae. It has seated, slightly succulent, line-shaped leaves of up to 3 cm long and about 1 mm (0.04 in) wide. Its flower heads sit individually at the tip of the branches, and contain about twenty yellow ray florets of about 8 mm long and 112 mm (0.06 in) wide, surrounding many yellow disc florets. A unique character is that when dried, the florets become greenish. The species is an endemic species of Namibia.

<i>Felicia tenella</i> A annual or biennial plant in the daisy family from South Africa

Felicia tenella is an annual, sometimes biennial, herbaceous plant that may be slightly woody at its base, of 5–70 cm tall, that is assigned to the family Asteraceae. The species is very variable in size and hairiness. Its branches may be erect or ascending, and the leaves are narrowly line-shaped, 2–5 cm long and about 1 mm (0.04 in) wide. The leaves have a callous tip, lack visible nerves, and are mostly rigidly ciliate. The flower heads sit individually at the tip of stalks, have an involucre of three whorls of bracts, and about thirty light blue ray florets surrounding many yellow disc florets. Four subspecies are recognised. The species naturally occurs in the Northern Cape and Western Cape provinces of South Africa.

References

  1. "Felicia cana DC". The Plant List.
  2. 1 2 3 4 5 6 7 8 Grau, J. (1973). "Revision der Gattung Felicia (Asteraceae)". Mitteilungen der Botanischer Staatssammlung München. IX: 359–362.
  3. Harvey, William H.; Sonder, Otto Wilhelm (2014). Flora Capensis - Being a Systematic Description of the Plants of the Cape Colony, Caffraria, & Port Natal and Neighbouring Territories. Cambridge Library Collection - Botany and Horticulture. Vol. 3 (reprint ed.). Cambridge University Press, 2014. p. 75. ISBN   9781108068086.
  4. "Felicia cana". SANBI Red List of South African Plants.