Interesting Facts
Description
Genus Veronicastrum
Herbs, perennial
. Roots
usually densely yellow tomentose
when young. Rhizomes short to long, rarely absent. Stems erect
or arching
and rooting
at apex. Leaves alternate, opposite, or whorled
. Inflorescences terminal
or axillary
, spicate
. Flowers usually crowded. Calyx 5-lobed, upper lobe
slightly smaller than others. Corolla 4-lobed; tube
tubular
, straight or slightly curved
, usually with a ring
of villous
hairs
inside, rarely glabrous
; limb actinomorphic
or 2-lipped; lobes unequal in width
, upper widest, lower narrowest. Stamens 2; filaments
usually basally villous, rarely glabrous, adnate
to upper part of corolla tube; anther
locules connivent, not confluent
. Stigma small, slightly dilated
. Capsule ovoid
to ovoid-globose, slightly compressed
laterally, 2-grooved, 4-valved. Seeds numerous
per capsule.
About 20 species: E Asia, North America; 13 species in China.[1]
Physical Description
Flowers: Bloom Period: June, July, August. • Flower Color: mauve , pale pink, red-purple, rose
Size/Age/Growth
Size: 4-6' tall.
Biology
Growth
Culture: Space 18-24" apart.
Soil: Minimum pH: 6.6 • Maximum pH: 7.8
Sunlight: Sun Exposure: Full sun .
Moisture: Drought Tolerance: High
Temperature: Cold Hardiness: 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b. (map)
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
()
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
()
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
()
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
()
- Infraphylum:
Radiatopses
()
- Kenrick & Crane, 1997
- Class:
Magnoliopsida
()
- Brongniart, 1843
- Dicotyledons
- Subclass:
Asteridae
()
- Takhtajan, 1967
- Superorder:
Lamianae
()
- Takhtajan, 1967
- Order:
Lamiales
()
- Bromhead, 1838
- Family:
Plantaginaceae
()
- A.L. de Jussieu, 1789, nom. cons.
- Subfamily:
Digitalidoideae
()
- Tribe:
Veroniceae
()
- Genus:
Veronicastrum
()
- Heister ex Fabricius, 1759
- Veronicastrum
- Specific epithet:
virginicum
- Cultivar:
Erica
- Botanical name: - Veronicastrum virginicum 'Erica'
- Cultivar:
Erica
- Specific epithet:
virginicum
- Genus:
Veronicastrum
(
- Tribe:
Veroniceae
(
- Subfamily:
Digitalidoideae
(
- Family:
Plantaginaceae
(
- Order:
Lamiales
(
- Superorder:
Lamianae
(
- Subclass:
Asteridae
(
- Class:
Magnoliopsida
(
- Infraphylum:
Radiatopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Notes
A tentatively accepted name in the RHS Horticultural Database.
Similar Species
Members of the genus Veronicastrum
ZipcodeZoo has pages for 7 species, subspecies, varieties, forms, and cultivars in this genus:
V. sibiricum (Culvers Root) · V. virginicum (Black Root) · V. virginicum 'Alboroseum' (Black Root) · V. virginicum 'Album' (Black Root) · V. virginicum 'Apollo' (Black Root) · V. virginicum 'Fascination' (Black Root) · V. virginicum 'Lavendelturm' (Black Root)
More Info
- Search for Pictures: images.google.com
- Search for Scholarly Articles: Google Scholar
- Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
Further Reading
- Tsoong Puchiu & Yang Hanbi, eds. 1979. Scrophulariaceae (1). Fl. Reipubl. Popularis Sin. 67(2): 1-431. Tsoong Puchiu, ed. 1963. Scrophulariaceae (2). Fl. Reipulb. Popularis Sin. 68: 1-449.
Notes
Contributors
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 12, 2012.
Identifiers
- Zipcode Zoo Species Identifier: 1899029
Footnotes
- "Veronicastrum". in Flora of China Vol. 18 Page 57. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
