Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

CAMPANULACEAE

BELLFLOWER FAMILY

Nancy Morin, except as specified

Annual to tree
Leaves generally cauline, generally simple, generally alternate, petioled or not; stipules 0
Inflorescence: panicle, raceme, spike, or flowers solitary in axils, generally open; bracts leaf-like or not
Flower: bisexual, radial or bilateral, sometimes inverted (pedicel twisted 180°; hypanthium generally present, ± fused to ovary; sepals generally 5; corolla radial to 2-lipped, generally fused (tube sometimes split down back), lobes generally 5; stamens 5, free or ± fused (anthers and filaments fused into tube or filaments fused above middle); ovary inferior, sometimes half inferior, chambers 1–3, placentas axile or parietal, ovules many, style generally 1, 2–5-branched
Fruit: generally capsule, dehiscing on sides or at tip by pores or short valves
Seeds many
Genera in family: ± 70 genera, ± 2000 species: worldwide. Some cultivated for ornamental (Campanula, Jasione, Lobelia ). Subfamilies sometimes treated as different families.

NEMACLADUS

Nancy R. Morin and Jennifer Milburn

Annual; roots fibrous
Stems erect or spreading, simple or branched at base or below middle
Leaves basal; petiole short or 0
Inflorescence ± raceme-like; bract 1 per flower, small; pedicel generally thread-like
Flower inverted; sepals linear to triangular; corolla nearly radial and 5-lobed or 2-lipped (upper lip 3-lobed, lower lip 2-lobed); filaments free at base, fused into tube above, sometimes appendaged at tube base, anthers free, all alike; ovary generally half-inferior in fruit, sometimes 0, hemispheric to obconic, sometimes glandular, stigma 2-lobed, papillate
Fruit generally > hypanthium, hemispheric to fusiform; tip pointed or rounded, dehiscing at tip by 2 valves; chambers 2
Seed elliptic to oblong
Species in genus: 13 species: sw US, nw Mex
Etymology: (Greek: thread-like branch)
Reference: [McVaugh 1942 N Amer Flora 32A: 1–134]

Native

N. rubescens Greene


Stems erect, 5–20 cm; base shiny, silver-gray
Leaf 5–20 mm, elliptic to oblanceolate, narrowed abruptly to winged petiole, entire, toothed, or ± pinnately lobed, glabrous or coarsely hairy
Inflorescence: axis weakly zigzag; bracts 1–2.5 mm, widely lanceolate; pedicels 8–15 mm, 0.1–0.2 mm diam, horizontal to ascending, slightly S-curved, tip slightly curved or not
Flower: hypanthium 0.2–0.3 mm; sepals ± 1 mm, elliptic to deltate, erect; corolla 1.5–2 mm, divided > 1/2 length, yellow with purple or brown marks, upper lobes reflexed, slightly ciliate, lower lobes erect, purple-tipped, densely ciliate; filament tube 2–3 mm, straight or tip slightly curved, anthers 0.6 mm; ovary 1/4–1/2 inferior
Fruit 2–2.5 mm, ± bell-shaped (base narrowed, tip rounded)
Seed 0.4 mm, widely elliptic; surface with wavy ridges alternating with weakly pitted rows
Ecology: Dry, sandy or gravelly soils
Elevation: < 1600 m.
Bioregional distribution: Peninsular Ranges (e slope), East of Sierra Nevada, Desert
Distribution outside California: Nevada, Arizona, Baja California
Flowering time: Apr–May
Plants from PR (e slope) & D, with narrow, deeply toothed leaves, filament appendage stalks >> processes have been called var. tenuis McVaugh.

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