Begonia piraquara

Begonia piraquara

B. piraquara

Quick Species Info

Species	piraquara
Region	South America
Country	Brazil
Year published	(YEAR)
Date of Origin	(YEAR)
Plant Type	(rhizomatous/cane/shrub/tuberous)
Section	(NAME)
Chr 2n	(COUNT)

Species Information

Classification and Distribution

Begonia piraquara is a herbaceous, prostrate, and rupicolous plant native to Brazil, specifically in the metropolitan region of the state of Rio de Janeiro, in the municipality of Rio de Janeiro.

Habitat

This species is found in submontane forests in valleys, typically growing on stoney walls covered by a thick layer of leaf litter. It thrives in shady and very humid conditions at an altitude of approximately 190 meters.

Characteristics

- Stems: Prostrate, internodes 0.5–1.5 cm long, ferruginous, villous. - Stipules: Subcarnose and greenish when fresh, scarious and brown when dry, ovate, with apex piliferous, margins entire, villous on the principal veins. - Leaves: Simple, with greenish petioles and elliptic, asymmetrical leaf blades. The adaxial surface is glabrous, while the abaxial surface is villous on the principal veins. - Inflorescences: 6–7-branched cymes, pinkish in color.

Flower Details

- Staminate Flower: Tepals 4, with the external pair pinkish on the outer surface and white on the inner surface, broadly ovate. The internal pair is white on the outer surface, except for being pinkish on the central part, and white on the inner surface. Stamens 8–12. - Pistillate Flower: Tepals 5, pinkish and unequal, widely ovate to obovate. Ovary 3-locular with wings.

Etymology

The species name "piraquara" honors the place where the species occurs, Piraquara.

Phenology

Begonia piraquara flowers and fruits from November to March.

Conservation Status

This species is provisionally assessed as VU D2 under IUCN Red List criteria due to being known in only one locality, close to intensely urbanized places, having a very small population, and being subject to various threats such as wildfires, invasive species, and habitat quality decline.

References

https://treatment.plazi.org/id/03FD87E19906FFDAFF06FF7C7FF9D4B3

Care

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Photos

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External Links

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