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Herbs & Plants

Gentiana crassicaulis

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Botanical Name: Gentiana crassicaulis
Family: Gentianaceae
Tribes: Gentianeae
Subtribes: Gentianinae
Genus: Gentiana
Species: Gentiana crassicaulis
Kingdom: Plantae
Order: Gentianales

Habitat : Gentiana crassicaulis is native to E. Asia – W. China. It grows on damp patches in mountainous regions. Wastelands, grasslands, roadside slopes, alpine meadows, scrub, forest margins and forests at elevations of 2100 – 4500 metres

Description:
Gentiana crassicaulis is a perennial herb, growing to 0.4 m (1ft 4in). Roots to 30 × 2 cm. Stems ascending, stout, simple, glabrous. Basal leaves petiole 5-8 cm, membranous; leaf blade narrowly elliptic to ovate-elliptic, 12-20 × 4-6.5 cm, base narrowed, margin scabrous, apex acute, veins 5-7. Stem leaves 3-5 pairs, distinctly larger toward apex, sessile, spreading, and surrounding flower cluster; petiole to 3 cm, membranous, completely connate; leaf blade ovate-elliptic to ovate-triangular, 6-16 × 3-4.5(-7) cm, base obtuse to truncate, margin scabrous, apex acute to obtuse, veins 3-5. Inflorescences crowded, many-flowered terminal clusters, rarely also few-flowered axillary whorls. Flowers sessile. Calyx tube spathelike, 4-6 mm, membranous, split on 1 side, apex truncate; lobes 1-5, dentiform, 0.5-1 mm. Corolla blue-purple, base pale yellow base or sometimes white or dark green, urceolate, 2-2.2 cm; lobes ovate-triangular, 2.5-3.5 mm, margin entire, apex acute; plicae triangular, 1-1.5 mm, oblique, margin denticulate, apex acute. Stamens inserted at middle of corolla tube; filaments 6-8 mm; anthers narrowly ellipsoid, 1.5-2.5 mm. Style 2-2.5 mm; stigma lobes oblong. Capsules sessile, ovoid-ellipsoid, 1.8-2 cm. Seeds light brown, ellipsoid, 1.2-1.5 mm. Fl. and fr. Jun-Nov

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Cultivation:
In general, gentians require a moist well-drained soil in a sheltered position, a certain minimum of atmospheric humidity, high light intensity but a site where temperatures are not too high. They are therefore more difficult to grow in areas with hot summers and in such a region they appreciate some protection from the strongest sunlight. Most species will grow well in the rock garden. This species is easily grown in most soils and usually produces an abundance of fertile seed. A moisture loving plant, preferring to grow with full exposure to the sun but with plenty of underground moisture in the summer, it grows better in the north and west of Britain. This species is not very hardy in the colder areas of the country, it tolerates temperatures down to between -5 and -10°c. Closely related to G. tibetica. Plants are intolerant of root disturbance.

Propagation :
Seed – best sown as soon as it is ripe in a light position in a cold frame. It can also be sown in late winter or early spring but the seed germinates best if given a period of cold stratification and quickly loses viability when stored, with older seed germinating slowly and erratically. It is advantageous to keep the seed at about 10°c for a few days after sowing, to enable the seed to imbibe moisture. Following this with a period of at least 5 – 6 weeks with temperatures falling to between 0 and -5°c will usually produce reasonable germination. It is best to use clay pots, since plastic ones do not drain so freely and the moister conditions encourage the growth of moss, which will prevent germination of the seed. The seed should be surface-sown, or only covered with a very light dressing of compost. The seed requires dark for germination, so the pots should be covered with something like newspaper or be kept in the dark. Pot up the seedlings into individual pots as soon as they are large enough to handle and grow on in light shade in the greenhouse for at least their first winter. The seedlings grow on very slowly, taking 2 – 7 years to reach flowering size. When the plants are of sufficient size, place them out into their permanent positions in late spring or early summer. Division in March. Most members of this genus have either a single tap-root, or a compact root system united in a single root head, and are thus unsuitable for division. Cuttings of basal shoots in late spring

Medicinal Uses:
The roots of gentian species contain some of the most bitter compounds known and make an excellent tonic for the whole digestive system, working especially on the stomach, liver and gall bladder. The root is analgesic, anti-inflammatory, antipyretic, antirheumatic, diuretic, febrifuge, hypoglycaemic and hypotensive. The root is used internally in the treatment of arthritis, allergic inflammations, low-grade fever in chronic diseases, jaundice and hepatitis. The root is harvested in the autumn and dried for later use.

Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplement, it is always advisable to consult with your own health care provider.

Resources:
https://species.wikimedia.org/wiki/Gentiana_crassicaulis
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200017920
https://en.wikipedia.org/wiki/Gentiana
http://www.pfaf.org/user/Plant.aspx?LatinName=Gentiana+crassicaulis

Categories
Herbs & Plants

Viola canadensis

Botanical Name : Viola canadensis
Family:  Violaceae – Violet family
Genus : Viola L. – violet
Species :Viola canadensis L. – Canadian white violet
Kingdom : Plantae – Plants
Subkingdom: Tracheobionta – Vascular plants
Superdivision:  Spermatophyta – Seed plants
Division : Magnoliophyta – Flowering plants
Class : Magnoliopsida – Dicotyledons
Subclass: Dilleniidae
Order : Violales

Synonyms:Viola canadensis Linnaeus var. rugulosa (Greene) C.L. Hitchcock ,Viola canadensis Linnaeus var. canadensis sensu NM authors,Viola canadensis Linnaeus var. neomexicana (Greene) House,Viola rydbergii Greene

Common Name : Canada Violet,Canadian white violet, Canada Violet, tall white violet, or white violet.

Habitat : It is native to Canada and the eastern United States.Viola canadensis is our most common white violet in the Gila National Forest. It is found along moist streambanks under trees, occasionally in large numbers.It is threatened or endangered in some areas, and abundant in others. There are four varieties.

Description:
General: perennial with short, thick rootstocks and often
with slender stolons. Stems 10-40 cm tall, hairless to
short-hairy.

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Leaves: basal and alternate, the stalks as much as 30
cm long. Leaf blades heart-shaped, abruptly pointed, about
4-8 cm long, from (usually) short-hairy on one or both
surfaces to hairless. Stipules lanceolate, 1-2 cm long,
entire, hairless to hairy on the edges only. The apex of the leaf is acute.

Flowers: one to few from the upper portion of the stem,
the stalks shorter than the leaves. The 5 sepals lanceolate,
often short-hairy and with hairy edges, the spur short. The
5 petals about 1.5 cm long, white to pinkish, yellow-based,
the 3 lower ones purplish-lined, the side bearded, all (but
especially the upper pair) more or less purplish-tinged on
the outside and sometimes less conspicuously so on the
inside. Style head sparsely long-bearded.The throat of the flower is marked with yellow with faint purple guidelines.

Flowering time: May-July.

Fruits: capsules, 4-5 mm long, granular on the surface
to short-hairy, with 3 valves, splitting open explosively and
shooting out seeds, the seeds brownish.

Medicinal Uses:
A tea made from the roots has been used in the treatment of pain in the bladder region.  The roots and leaves have traditionally been used to induce vomiting, they have also been poulticed and applied to skin abrasions and boils.

Disclaimer:
The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplements, it is always advisable to consult with your own health care provider.

Resources:
http://montana.plant-life.org/species/viola_canad.htm
http://www.herbnet.com/Herb%20Uses_C.htm
http://www.wnmu.edu/academic/nspages/gilaflora/viola_canadensis.html
http://en.wikipedia.org/wiki/Viola_canadensis

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