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|lifespan=perennial

|lifespan=perennial

|life_ref=Flora - A Gardener's Encyclopedia

|life_ref=Flora - A Gardener's Encyclopedia

|Temp Metric=°F

|Temp Metric=°F

|image=Tolmiea menziesii.JPG

|image=Upload.png

|image_width=240

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The plant '''''Tolmiea menziesii''''' ({{pron-en|tɒlˈmiːə mɛnˈziːzi.aɪ}})<ref>''Sunset Western Garden Book,'' 1995:606–607</ref> is the only member of the monotypic genus '''''Tolmiea'''''. It is known by the common names '''youth on age''', '''thousand mothers''', and '''piggyback plant'''. It is a perennial plant commonly kept as an ornamental. It is native to the west coast of North America, especially in regions dominated by [[Sequoia|redwoods]]. It requires moisture and does not tolerate much sun or dry conditions.

| latin_name = ''Tolmiea''

 

| common_names =    <!--- if multiple, list all, if none, leave blank -->

The plant is most interesting for its reproductive habits. It grows plantlets from the [[petiole (botany)|petiole]] near the base of each leaf. The plantlets drop off, fall in the soil, and take root there. It will also reproduce by [[rhizome]] and by seed propagation. It bears small flowers of various colors, usually brownish-purple to white depending on the cultivar. It has hairy, toothed leaves and a capsule fruit containing spiny seed.

| growth_habit = ?  <!--- tree, shrub, herbaceous, vine, etc -->

 

| high = ?  <!--- 1m (3 ft) -->

The plant is also unusual in that it is sometimes diploid and sometimes tetraploid, due to [[Polyploidy|autopolyploidy]].

| wide =    <!--- 65cm (25 inches) -->

 

| origin = ?  <!--- Mexico, S America, S Europe, garden, etc -->

The genus was named after the Scottish-Canadian botanist [[William Fraser Tolmie]].

| poisonous =    <!--- indicate parts of plants which are known/thought to be poisonous -->

 

| lifespan =    <!--- perennial, annual, etc -->

| exposure = ?  <!--- full sun, part-sun, semi-shade, shade, indoors, bright filtered (you may list more than 1) -->

| water = ?  <!--- frequent, regular, moderate, drought tolerant, let dry then soak -->

| bloom =    <!--- seasons which the plant blooms, if it is grown for its flowers -->

| usda_zones = ?  <!--- eg. 8-11 -->

| sunset_zones =    <!--- eg. 8, 9, 12-24, not available -->

| image_width = 240px    <!--- leave as 240px if horizontal orientation photo, or change to 180px if vertical -->

| image_caption = Tolmiea menziesii amongst Bedstraw

| divisio =  <!--- Phylum -->

{{Inc|

{{Inc|

Tolmiea (named for Dr. Tolmie, surgeon of Hudson Bay Co.). Saxifragaceae. Herbaceous, glandular pubescent, hardy: rhizome scaly: sts. simple: cauline lvs. alternate, radical petioled, cordate-incised-lobate; stipules membranaceous: racemes terminal, slender, simple: fls. rather secund, nodding, green; calyx-tube elongate, funnelform-campanulate, 5-lobed; petals 5, capillary; stamens 3; ovary narrowly oblong, 1-celled: caps. exserted from the calyx, superior, 2-valved, 2-beaked. — One species. Borders and wild-garden.

Tolmiea (named for Dr. Tolmie, surgeon of Hudson Bay Co.). Saxifragaceae. Herbaceous, glandular pubescent, hardy: rhizome scaly: sts. simple: cauline lvs. alternate, radical petioled, cordate-incised-lobate; stipules membranaceous: racemes terminal, slender, simple: fls. rather secund, nodding, green; calyx-tube elongate, funnelform-campanulate, 5-lobed; petals 5, capillary; stamens 3; ovary narrowly oblong, 1-celled: caps. exserted from the calyx, superior, 2-valved, 2-beaked. — One species. Borders and wild-garden.

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