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Geranium caespitosum, the purple cluster geranium or pineywoods geranium, is a perennial herb native to the western United States and northern Mexico. Its US distribution includes Arizona , Colorado , Nevada , New Mexico , Texas , Utah , and Wyoming .
The larvae of the geranium bronze bore into the stem of the host plant, causing the stem to typically turn black and die soon after. Geranium bronze are currently listed as an A2 quarantine pest by the European and Mediterranean Plant Protection Organization and can cause significant damage to Pelargonium species. [33]
Geranium psilostemon, commonly called Armenian cranesbill, is a species of hardy flowering herbaceous perennial plant in the genus Geranium, family Geraniaceae. [1] It is native to Turkey, Armenia, Azerbaijan, and the Russian Federation. Forming a large clump to 120 cm (47 in) tall, it has glowing reddish purple colored flowers with prominent ...
Geranium macrorrhizum – rock cranesbill, bigroot geranium, Bulgarian geranium, zdravetz; Geranium macrostylum; Geranium maculatum – spotted geranium, wild geranium, wood geranium, spotted cranesbill, wild cranesbill, alum bloom, alum root, old maid's nightcap; Geranium maderense – Madeira cranesbill, giant herb-robert
The specific epithet hortorum is a genitive plural form of the Latin "hortus" ("garden") and therefore corresponds to "horticultural".The name was created by the American botanist Liberty Hyde Bailey who in 1914, writes "The large number of forms of the common geranium, derives from the variation and probably the crossing of P. zonale and P. inquinans (and possibly others) during more than a ...
The ivy-leaved pelargonium is a perennial plant that scrambles over the surrounding vegetation and its somewhat succulent, slender and smooth, 3–10 mm (0.12–0.40 in) thick stems can grow to a length of about 2 m (7 ft). The leaves are alternately arranged along the stem, but sometimes seem to be opposite.
Erodium cicutarium seed uses self-dispersal mechanisms to spread away from the maternal plant and also reach a good germination site to increase fitness. Two abilities that E. cicutarium has are explosive dispersal, which launches seeds by storing elastic energy, and self-burial dispersal, where the seeds move themselves across the soil using ...
The seeds remain dormant while buried in the forest floor, sometimes for centuries, until a fire removes the organic litter and exposes the seeds to sunlight. The geraniums will germinate, bloom, and set seed profusely for several years after the fire, until other plants grow large enough to shade them out.