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He placed Allium in a grouping he referred to as Hexandria monogynia (i.e. six stamens and one pistil) [9] containing 51 genera in all. [10] In 1763, Michel Adanson, who proposed the concept of families of plants, included Allium and related genera as a grouping within Liliaceae [11] as Section IV, Les Oignons (Onions), or Cepae in Latin. [12]
According to the Garden Guy, the Serendipity ornamental onion is ideal for Zones 4-8, and its fragrant purple flowers are pollinator magnets.
[2] [5] [6] [7] Two varieties are recognized: [2] [8] Allium perdulce var. perdulce; Allium perdulce var. sperryi Ownbey [9] [10] [11] Var. sperryi is a color variant known only from western Texas in the trans-Pecos region. It has white to pale pink flowers instead of the more widespread deep rose to purple. [2]
The potato onion (also known as an Egyptian onion, underground onion [1] or multiplier onion) [2] is a group of varieties [3] which Maud Grieve calls Allium × proliferum [1] but has also been classed in the Aggregatum Group of Allium cepa, similar to the shallot. [3]
A. textile produces egg-shaped bulbs up to 2.5 cm long. There are no rhizomes. Scapes are round in cross-section, up to 40 cm tall. Flowers are bell-shaped or urn-shaped, about 6 mm in diameter; tepals white or pink with reddish-brown midribs; pollen and anthers yellow.
Allium acuminatum produces bulbs that are spherical, less than 2 cm across and smelling like onions. [4] Scape is up to 40 cm tall, wearing an umbel of as many as 40 flowers. The flowers are pink to purple with yellow anthers.
Allium victorialis attains a height of 30–45 cm (11.8–17.7 in) and forms a sheathed bulb ("root-stalk") about the thickness of a finger and 5–8 cm (2.0–3.1 in) long. [14] Leaves are broad, elliptical or lanceolate. Flowers are whitish green. [14]
Allium flavum, the small yellow onion [4] or yellow-flowered garlic, [5] is a species of flowering plant in the genus Allium. A bulbous herbaceous perennial , it is native to the lands surrounding the Mediterranean , Black , and Caspian Seas , from areas like France and Morocco to Iran and Kazakhstan .