Vanhouttea lanata

  1. Calyx lobes enclose the flowerbud
  2. Calyx and fruit
  3. Hybridization
  4. Feature table
  5. External link
  6. Publication and etymology

The name lanata ("woolly") comes from the dense white hair covering the pedicels, calyxes, and backs of young leaves.  This woolly character is most pronounced in blooming season, since the hair completely covers the developing flowerbud and its stalk.

Vanhouttea lanata


 
Vanhouttea lanata

Calyx lobes enclose the flowerbud

This picture shows two flowers of Vanhouttea lanata.  On the right is a flowerbud.  Note the hair all long the stalk and covering the calyx.  Also note that the calyx lobes are joined together along their margins and completely enclose the corolla bud.

The flower color is slightly off -- a little too dark because of adjustments made owing to the sunshine. The color in the picture at the top of the page is closer to that of the actual plant.

The flower is at the end of the male phase.  The anthers, visible as the white mass lying on top of the lowest corolla lobe, are still full of pollen, but the stigma is just beginning to emerge from the tube.  In the picture at the top of the page, the anthers have dried up and curled down out of the way, a physical mechanism adopted by most sinningia-tribe flowers to avoid self-pollination.

Cold Tolerance

Vanhouttea lanata is hardy to 32F, but can lose some or all of its leaves in colder weather.  A sizable plant was killed by the freeze in January 2007, when overnight lows were around 28 F [-2 C] for five nights in a row.



 

Calyx

The calyx lobes curl like talons over the developing fruit.  When the fruit is mature, the calyx lobes spread open in a five-pointed star to clear the way for seed dispersal.

Vanhouttea Comparison Page

Because most vanhoutteas do not bloom easily outside Brazil, we have a page showing a comparison of the leaves of four vanhouttea species.

Vanhouttea lanata


 
Vanhouttea lanata in a flask

Flask Photography

In the middle of 2006, one of my V. lanata plants had produced flowerbuds all along one branch.  When I was moving another plant, it accidentally snagged the bud-laden branch and tore it off.  After trying out some colorful phrases I had learned in my youth, I cut the branch into a couple of pieces and stuck them in a flask full of water.

One of the cuttings rooted, filling the flask with fine hairs.  Most of the buds dropped, but one (after three months) opened, and here it is!

Epilog: Eventually I put the cutting, water roots and all, in soil.  It promptly died.

 

Hybridization

Brad Walker sent this picture of V. lanata x Sinningia eumorpha.  He got the seed from Mauro Peixoto, who made the cross.

Brad says it is a difficult plant to keep alive.

Vanhouttea lanata x eumorpha


Feature table for Vanhouttea lanata

Plant Description

Growth Indeterminate
Habit Shrub, branching mostly at base
Leaves Green, hairy on reverse
Dormancy No tuber.  Plant does not grow in winter, but fruits mature in late autumn through mid-winter.

Flowering

Inflorescence axillary cymes
Season Blooms in summer, early autumn. Fruits ripen in winter.
Flower Red, funnelform, stripes on corolla lobes and tube

Horticultural aspects

Hardiness Once survived 28F (-2C) in my yard, but a longer spell at that temperature killed it.
Recommended? Yes, with reservations.  The fuzzy foliage and flowerstalks are very attractive, but the plant takes up too much space to grow indoors unless you have a mansion.

Botany

Taxonomic group In a vanhouttea subgroup of the Sinningia clade.

External Link

Mauro Peixoto's web site has a page about Vanhouttea lanata.

Publication

Fritsch, 1900.

Etymology: Latin lanata, from lana ("wool"), whence English "lanolin".  The Indo-European root wele gave rise to Latin lana (via wlana), English "wool", and (via Welsh gwlan) English "flannel".  There will be a quiz.