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Stem tubers grow from rhizomes or runners that swell from storing nutrients while root tubers propagate from roots that are modified to store nutrients and get too large and produce a new plant. [22] Examples of stem tubers are potatoes and yams and examples of root tubers are sweet potatoes and dahlias.
Air plants are slow growers that generally take between 1 to 3 years to bloom, although this varies between air plant species. These plants typically flower in spring or summer and their short ...
It is 50–70 cm (20–28 in) tall and broad, with 9-lobed leaves 20–40 cm (8–16 in) long. The flower buds appear in late spring (May in the Northern Hemisphere). They are large and round, opening into fragrant, cup- or bowl-shaped flowers 8–16 cm (3–6 in) in diameter, with 5–10 white, pink, or crimson petals and yellow stamens . [ 1 ]
Paeonia brownii is a glaucous, summer hibernating, perennial herbaceous plant of 25–40 cm high with up to ten stems per plant, which grow from a large, fleshy root. Each pinkish stem is somewhat decumbent and has five to eight twice compound or deeply incised, bluish green, hairless, somewhat fleshy leaves which may develop purple-tinged edges when temperatures are low.
Paeonia tenuifolia is a hairless herbaceous perennial plant with a stem of 30–60 cm high, which is densely set with alternately arranged compound leaves. The lowest leaves are twice compounded or the leaflets are deeply divided into many fine linear segments, ½-6 mm wide, with a blunt to rounded tip, dark green above, and lighter glaucous green below.
The tubers form close to the soil surface and sometimes even on top of the ground. When potatoes are cultivated, the tubers are cut into pieces and planted much deeper into the soil. Planting the pieces deeper creates more area for the plants to generate the tubers and their size increases. The pieces sprout shoots that grow to the surface.
The California peony is most related to, and close in appearance to Brown's peony, with which it constitutes the section Onaepia.Common characters include having rather small drooping flowers, with small petals and a very prominent disk which usually consists of separate segments, while the seeds are cylindrical rather than ovoid.
Other species of tree peony do not have yellow flowers, do not grow as large and generally have darker green foliage and darker brown bark. Some of the many cultivated cross-breeds of tree peonies may have yellow flowers, but these are not nodding, generally much larger, mostly double flowered, with darker green leaves and much lower. [7]