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Broomrape family
Orobanchaceae
ハマウツボ科
A family containing many parasitic and hemiparasitic plants. Under the APG system, genera formerly in Scrophulariaceae such as Phtheirospermum, Melampyrum, and Aeginetia were incorporated. Ranges from holoparasites lacking chlorophyll to hemiparasites that also photosynthesize.
Key Characteristics
- ●Parasitic on roots of other plants (holoparasitic or hemiparasitic)
- ●Holoparasitic species lack chlorophyll and are yellowish-brown to white
- ●Corolla sympetalous and bilabiate
- ●Haustoria absorb nutrients from host plants
- ●Seeds very small and numerous
Morphological Traits
A family may include species with different trait values — multiple values indicate the range within the family.
Leaf arrangement
Alternate
Leaf type
Simple
Venation
Pinnate
Leaf margin
Entire
Growth form
Herb
Evergreen/Deciduous
Deciduous
Leaf dissection
Undivided
Stipules
Absent
Flower symmetry
Zygomorphic
Petal count
6 petals / Many
Petal fusion
Fused
Ovary position
Superior
Stamen count
1-2 / 3-4 / 5
Plant sex
Hermaphrodite
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Lamiales > Orobanchaceae
Divergence Era
Paleogene (ca. 50 Ma onwards)
Representative Genera
Related Evolution Events
- ・Evolutionary transitions from hemiparasitism to holoparasitism (multiple times within the lineage)
- ・Loss of chlorophyll and increased host dependency
Plants in Broomrape family on this site
AI-generated, needs verification