Plant Gardens 101

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Annuals Dictionary: Centaurea

February 08, 2010 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Sen-tor’ree-a. A genus of chiefly Eurasian herbs comprising over 400 species.

Description
Leaves basal or alternate on stems, entire to divided, not spiny. Flowerheads contain tubular flowers; along the edge, they are often expanded and raylike. Below the head is a series of overlapping bracts.

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Annuals Dictionary: Catananche

January 31, 2010 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Kat-a-nann’ke. Of the 5 known species of this genus, only the Cupid’s Dart is grown in the garden for its showy blue heads.

Description
Leaves mostly basal and narrow. Flowers in long-stalked heads, the rays flat and toothed.

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Annuals Dictionary: Gerbera

January 07, 2010 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Ger’ber-ra. A genus of perhaps 70 species of South African or Asiatic, mostly stemless, herbs.

Description
From a basal rosette of leaves arise stout stalks bearing a single daisylike flower.

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Annuals Dictionary: Crepis

January 01, 2010 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Kreep’is. About 200 species of annual to perennial herbs, with milky juice, many rosette-forming, native in the northern hemisphere. Related to Hieracium , the hawkweeds.

Description
Flowerheads without ray flowers, pink, yellow, or white.

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Annuals Dictionary: Rudbeckia

December 30, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Rood-beck’i-a. Coneflower . North American hardy herbs, comprising about 25 species.

Description
Leaves usually alternate, simple or compound, in some species much cut and lance-shaped, veins prominent, margins deeply toothed toward the tip. Flowers in terminal or axillary heads, generally yellow, in most species the disk flowers being brown or black.

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Annuals Dictionary: Baileya

December 30, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Bay-lay’a. A small genus of 3 or 4 species of herbs, native to dry desert areas, with only one of gardening interest.

Description
Leaves alternate, at base and on lower stem. Flowerheads solitary, their disk and ray flowers yellow. Ray flowers become papery and can be used for dried arrangements.

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Annuals Dictionary: Silybum

December 22, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Sil-ly’bum. Annual or biennial herbs, comprising only 2 species, natives of the Mediterranean region. The species below grown as an ornamental plant for its silvery leaves. Also grown as a vegetable, since its roots, leaves, and flowerheads are edible.

Description
Leaves alternate, with white spots and veins on the upper side, the margins lobed and spiny. Flowerheads purplish, solitary and nodding. Many bracts surround the head, forming a globe-shaped receptacle.

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Annuals Dictionary: Machaeranthera

December 12, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Ma-kee-ran’the-ra. A small genus of herbs found in w. North America and closely related to Aster .

Description
Leaves alternate, bristly. In the only cultivated species (below), flowerheads rather showy.

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Annuals Dictionary: Layia

December 10, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Lay’i-a. A genus of mostly Californian herbs, comprising about 15 species, 2 grown for their showy flowerheads.

Description
Leaves alternate, generally without marginal teeth. Flowerheads solitary, stalks terminal. Ray flowers handsome, 8-20, yellow or white, and 3-toothed. Disk flowers tubular.

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Annuals Dictionary: Gazania

December 04, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Ga-zay’ni-a. Showy South African herbs comprising about 16 species, a few long cultivated for their pretty flowerheads.

Description
Leaves alternate and basal. Flowerheads solitary, long-stalked, closing at night or in cloudy weather. Rays yellow, golden, or white, often with a dark spot at the base, the head thus with a dark eye. Good ground cover or edging plants.

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Annuals Dictionary: Dahlia

December 03, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Dahl’ya, also day’li-ya. A small but very important genus of tuberous-rooted herbs, the source of all the garden dahlias, most from the uplands of Mexico and Guatemala.

Description
Tuberous roots. Leaves opposite, often compound or twice-compound, the leaflets or segments toothed or cut. Flowers very varied due to breeding, ranging from small ball-shaped pompons to large multipetaled blossoms with curled, quill-like petals. Wild types always have both ray and disk flowers.

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Annuals Dictionary: Felicia

December 02, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Fe-liss’i-a. A large genus of chiefly South African subshrubs (rarely annuals).

Description
Leaves alternate or opposite, or sometimes in rosettes. Flowerheads showy, usually blue, and radiating.

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Annuals Dictionary: Xanthisma

November 20, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Zan-this’ma. Sleepy Daisy . A single species, native in Tex. The flowerheads close at night.

Description
Wandlike stems with narrow, alternate leaves. Flowerheads long-stalked, mostly solitary, with 18-20 ray flowers.

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Annuals Dictionary: Venidium

November 18, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
Ve-nid’i-um. South African annual or perennial herbs comprising about 25 species.

Description
Leaves alternate, deeply cut, stalked, grayish green, of cobwebby appearance when young. Flowers in solitary heads, daisylike. Ray flowers yellow or orange, sometimes with purple band at the base. Disk flowers purplish black.

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Annuals Dictionary: Helianthus

October 29, 2009 By: Annuals Dictionary Category: Annuals Dictionary

Daisy family
Compositae
He-li-an’thus. Rather coarse, hardy herbs comprising about 150 species, found mostly in North America. They are very diverse in size and character, since they readily hybridize in their natural surroundings.

Description
Varied rootstocks, some thick, woody, and compact; some thick, woody, and spreading; others tuberous. Leaves alternate, sometimes opposite above, the margins usually coarsely toothed. Flowers in terminal heads, 3-12 in. (7.5-30.0 cm) across.

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