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Lobelia laxiflora subsp. angustifolia

Lobelia laxiflora subsp. angustifolia (A. DC.) Eakes & Lammers   (redirected from: Lobelia angustifolia (A. DC.) Urbina)
Family: Campanulaceae
Sierra Madre lobelia
[Lobelia angustifolia (A. DC.) Urbina, moreLobelia laxiflora var. angustifolia A. DC., Lobelia nelsonii var. fragilis B. L. Rob. & Fernald]
Lobelia laxiflora subsp. angustifolia image
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Plant perennial. Stems erect, 30-60 cm tall, glabrous. Leaves cauline, sessile or petiolate; petiole 1-5 mm when present; blades linear, lanceolate, to narrowly elliptic; 0.4-1.4 cm wide, 12-18x longer than wide; tip acute to acuminate; base attenuate; margins entire to serrulate or serrate. Flowers in a terminal raceme; pedicel 25-85 mm, glabrous; hypanthium 2.5-5 mm long; nectar spurs absent; calyx lobes 1-6 mm, erect; corollas red-orange to red-yellow; tube 10-21 mm long, with dorsal slit, and with lateral “windows”; staminal column 25-37 mm, the 2 lower anthers with stiff bristles at tips. Fruit about ½ inferior, ascending, 7-8 mm long. Seeds ellipsoid with minute striations. Editor: MBarrera 2024.

Habitat: Mesic to wet open to shaded habitats, from stream bottoms and gravel bars to rocky grassy slopes in pine-oak, coniferous, deciduous, and mixed forests between 1300-3400 m in elevation. Flowering in northern March to July, and in southern Mexico October to June or July.

Distribution: Throughout northwestern Mexico, from Sonora and Chihuahua to Puebla,and in the United States (southern Arizona).

Plantas perenne. Tallos erectos, 30-60 cm de altura, glabros. Hojas caulinares, sésiles o pecíolada; pecíolo 1-5 mm cuando esté presente; láminas linear, lanceoladas, a estrechamente elípticas; 0.4-1.4 cm de ancho, 12-18x más largo que ancho; ápice aguda a acuminada; base atenuada; márgenes entera o serrado. Flores en un racimo terminal; pedicelos 25-85 mm, glabros; hipanto 2.5-5 mm de largo; esponoles de nectar ausentes; lóbulos de cáliz 1-6 mm de largo, erectos; corola de color rojo-naranja hasta rojo-amarillo; tubo 10-21 mm de largo, fenestrado dorsalmente, con “ventanas” laterales cerca de la base; estambre 25-37 mm, los 2 anteras inferiores con cerdas rígidas en el ápice. Fruto aproximadamente ¾+ inferior, ascendiendo, 7-8 mm de largo. Semillas elipsoide con estrías diminutas. Editora: MBarrera 2024.

Hábitat: Hábitats mésicos a húmedos con sombra o sol, en arroyos y barras de grava hasta laderas rocosas con pasto en bosques de pino-encino, conífero, caducifolio, y mixto entre 1300-3400m de altura. En flor en Marzo hasta Julio en el norte y en Octubre hasta Junio o Julio en el sur.

Distribución: Entre el noreste de México, de Sonora y Chihuahua a Puebla, y en los Estados Unidos (en el sur de Arizona).

 

Lobelia laxiflora subsp. angustifolia
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Lobelia laxiflora subsp. angustifolia image
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Lucio Caamaño Onofre
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Lobelia laxiflora subsp. angustifolia image
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Lobelia laxiflora subsp. angustifolia image
Lobelia laxiflora subsp. angustifolia image
Lobelia laxiflora subsp. angustifolia image
Lucio Caamaño Onofre
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