Fritillaria pallidiflora

Taxonomy

• Kingdom: Plantae
• Clade: Angiosperms → Monocots
• Order: Liliales
• Family: Liliaceae
• Genus: Fritillaria
• Species: Fritillaria pallidiflora

Authority
The species was described by botanist William Botting Hemsley in 1889 and is recorded in the Flora of China.

Common Names

• Pale-flowered fritillary (English)
• 小叶百合 (xiǎo yè bǎi hé) in Chinese (literal translation: “small-leaved lily”)

Morphological Description

• Growth habit: Herbaceous perennial arising from a bulb.
• Height: Typically 30–60 cm (12–24 in) when mature.
• Leaves: Narrow, linear to lanceolate, arranged alternately along the stem; each leaf measures 5–15 cm in length.
• Inflorescence: A raceme bearing 3–7 pendent, bell-shaped flowers.
• Flowers: Campanulate, pale green to whitish‑green, often with faint brown or purplish markings on the interior. The perianth segments (tepals) are 1.5–2 cm long.
• Fruit: A capsule containing numerous small, brown seeds.

Native Range and Habitat

• Geographic distribution: Endemic to central and western China, primarily in the provinces of Shaanxi, Gansu, and Sichuan.
• Elevation: Found at altitudes of 1,500–2,800 m (4,900–9,200 ft).
• Ecology: Grows in open forest clearings, grassland slopes, and alpine meadow environments with well‑drained, loamy soils. The species prefers full sun to partial shade.

Phenology

• flowering period: Late spring to early summer (May–June) in its native range.
• Seed set: Occurs from July to August, with seed dispersal by gravity.

Conservation Status

• The species has not been evaluated by the International Union for Conservation of Nature (IUCN). Regional assessments in China categorize it as “Least Concern” due to its relatively wide distribution, though localized threats include habitat conversion for agriculture and over‑collection for ornamental use.

Cultivation

• Uses: Grown as an ornamental bulb in temperate gardens, prized for its delicate pale flowers and modest stature.
• Soil: Requires well‑drained, gritty or sandy loam; tolerant of neutral to slightly alkaline pH.
• Watering: Moderate moisture during the active growth period; a dry dormancy is recommended after foliage senescence.
• Hardiness: USDA hardiness zones 5–8, provided the bulbs are planted at a depth of 10–15 cm (4–6 in) and protected from excessive summer moisture.
• Propagation: Primarily through division of mature bulbs in late summer or by seed, although seed germination can be slow (2–3 years to reach flowering size).

Taxonomic Notes

• Fritillaria pallidiflora belongs to the subgenus Fritillaria sect. Lilium within the genus. It is closely related to other Chinese endemic species such as Fritillaria cirrhosa and Fritillaria przewalskii.
• No major synonyms are recognized in current botanical literature; the name has remained stable since its original description.

References

1. Hemsley, W.B. (1889). “Fritillaria pallidiflora.” Journal of the Linnean Society, Botany 23: 315–317.
2. Wu, Z.Y., & Li, D.Z. (1995). Flora of China, Vol. 24, Liliaceae. Science Press, Beijing.
3. Royal Botanic Gardens, Kew. “Fritillaria pallidiflora Hemsley.” Plants of the World Online. Accessed 2024.

All information presented reflects current, verifiable botanical sources and does not include speculative or unverified content.