Hippeastrum petiolatum

Hippeastrum petiolatum (Azucena de Río) is a flowering perennial herbaceous bulbous plant, in the family Amaryllidaceae, distributed from Paraguay to Uruguay and Argentina.[1]

Hippeastrum petiolatum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Amaryllidoideae
Genus: Hippeastrum
Species:
H. petiolatum
Binomial name
Hippeastrum petiolatum
Synonyms

Amaryllis petiolata
(Pax) Traub & Uphof[2]

Description

Hippeastrum petiolatum grows to a height of 30–40 cm. Leaves are lanceolate, and dark green, forming a basal rosette around 60 cm in diameter. They grow to a length of 20–50 cm. There are up to three scapes per bulb. The paraperigonium consists of minute scales at the throat of the tepal tube, whose segments are unequal and ruffled and 1–2 cm broad at the middle and 15 cm long. Perigone 6–7 cm. The showy flowers are 10 cm in diameter, scarlet-red with purple veins, greenish-yellow in the throat and usually 3–4 in number but may be 5 rarely. Stigma trifid. Bulbs large (10 to 15 cm in diameter).[3][4]

Taxonomy

Described by Ferdinand Albin Pax in 1889.[1]

Heterotypic Synonyms
  • Hippeastrum flammigerum E.Holmb., Anales Mus. Nac. Buenos Aires, ser. 3, 1: 411 (1902).
  • Amaryllis flammigera (E.Holmb.) Traub & Uphof, Herbertia 5: 127 (1938).
  • Amaryllis argilagae Traub, Pl. Life 23: 59 (1967).
  • Amaryllis petiolata subsp. cochunensis Ravenna, Pl. Life 26: 78 (1970).
  • Hippeastrum argilagae (Traub) Dutilh, Taxon 46: 16 (1997).

Cultivation

Full sun to part shade, moist but well drained soil, or pots. Leaves may persist all year under optimum conditions. Reproduction is solely by lateral bulbils, and bears no fruit.[4]

Ecology

Spring flowering.[4]

Uses

Cut flowers.[4]

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References
  1. Royal Botanic Gardens, Kew: Hippeastrum petiolatum.
  2. Herbertia 5: 126 (1938)
  3. Pacific Bulb Society: Hippeastrum petiolatum
  4. Verdesencia: AZUCENA DE RÍO. January 18, 2010 (image)

Sources
  • The Plant List (2012). "Hippeastrum petiolatum". Retrieved 20 March 2014.
  • GBIF: Hippeastrum petiolatum
  • Pacific Bulb Society: Hippeastrum petiolatum
  • "Hippeastrum petiolatum". Tropicos. Missouri Botanical Garden. Retrieved 25 March 2014.
  • International Bulb Society: Hippeastrum petiolatum (image)


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