LANDSCAPE PLANTS I

Fall

Sample Exam #1

Please use a soft-leaded pencil on the score sheet.

Match the Genus with the Appropriate Family:

1.          Stokesia                                                                 A.         Boraginaceae

2.          Coix                                                                      B.         Compositae or Asteraceae

3.          Heuchera

4.          Monarda                                                                C.         Crassulaceae

5.          Miscanthus                                                            D.         Geraniaceae

6.          Stachys

7.          Aloysia                                                                  E.         Gramineae or Poaceae

8.          Salvia                                                                    F.         Labiatae or Lamiaceae

9.          Pelargonium

10.        Symphytum                                                           G.         Plumbaginaceae

11.        Heliopsis                                                               H.         Ranunculaceae

12.        Doronicum

13.        Gazania                                                                 I.          Saxifragaceae

14.        Limonium                                                             J.          Verbenaceae

15.        Sempervivum

Use A or 1 for True; B or 2 for False

16.        Geranium includes species with lemon, rose, and perppermint fragrance.

17.        Agrostology is the name for the study of the Gramineae or Poaceae Family.

18.        Chrysanthemum ptarmiciflorum is the Lacy Dusty Miller with deer antler or solid foliage.

19.        Salvia officinalis and Salvia farinacea have leaves with a pebble-like upper side and includes cultivars with

 yellow margins, purple leaves, and some with pink and white variegated leaves.

20.        Sedum spathulifolium cv. Cape Blanco has leaves in gray colored rosettes, and yellow flowers.

21.        Dicentra spectabilis is a member of the Fumariaceae with red or white heart-shaped flowers in spring or early

 summer.

22.        Sedum spurium is a red or pink flowered member of the Crassulaceae with flower parts typically in ten’s.

23.        Artemesia, Stachys, Salvia, and Senecio are members of the Labiateae that have species with silvery or grayish

 leaves and stems.

24.        Platycodon and Campanula are usually blue flowered members of the Campanulaceae.

25.        Mentha suaveolens, known as Applemint, has rounded leaves, pubescent leaves and stems, terminal flower

 clusters, and leaves with a petiole.

26.        Oenothera missouriensis is a creeping, red stemmed member of the Onagraceae with large yellow flowers.

27.        We are in hardiness zone 4 according to the U.S.D.A. hardiness zone map.

28.        Aloysia triphylla, Pelargonium crispum, and Salvia splendens have leaves with a lemon fragrance.

29.        Gazania is a good Compositae member for hot, dry sites.

30.        Ligule characteristics can be useful in identifying species of the Gramineae.

31.        We follow Hortus Third for Genus and species names; and Cronquist for plant family definition and

 arrangement.

32.        Family names usually end in -aceae with only 8 exceptions in The International Code of Botanical Nomenclature.

33.        Solidago and Doronicum are members of the Compositae with species that usually have yellow flowers.

34.        The horticultural cultivar is defined in The International Code of Botanical Nomenclature.

35.        Rosmarinus officinalis, Pelargonium crispum, and Aloysia triphylla are non-hardy perennials in Michigan.

36.        Achillea millefolium is common in Michigan fields and roadsides where it usually has white flower heads, but

 pink and red cultivars are available from perennial plant catalogs.

37.        The Cucurbitaceae Family includes ornamental gourds as well as the Luffa or vegetable sponge.

38.        Brassica oleracea or ornamental kale and ornamental cabbage are colorful foliage plants in the Cucurbitaceae that

 have ornamental value in late summer and fall as well as into early winter.

39.        Oenothera includes weedy species as well as ornamental ones, usually with yellow flowers.

40.        Most herbs grow best in poorer soils and drier sites except plants like Mentha x piperita.

41.        Rheum palmatum has more decorative ragged or pointed-edged leaves than Rheum rhabarbarum.

42.        Woodland violets and the garden pansy are both in the genus Viola.

43.        One of the Gramineae with bright red leaves throughout most of the season is Imperata cylindrica `Red Baron'.

44.        Dirr uses the U.S.D.A. hardiness zones while Armitage uses the Arnold Arboretum zones.

45.        Miscanthus leaves usually have a white midvein, a keeled leaf, and the inflorescense or flower cluster is usually

 showy and silver or brown in color.

46.        Alcea rosea leaves are often skeletonized by insects; their flowers are single or double.

47.        Delphinium is a member of the Papaveraceae with flowers having a single spur at their base.

48.        Gypsophila paniculata usually has leaves on the flower stalk, while Limonium latifolium usually has only large

 basal leaves.

49.        Liatris is a member of the Compositae with tall spikes of purple, lavender or white flowers.

50.        A cultivar is found in cultivation and has some distinguishing characteristics, which, when propagated by any

 method, retains those distinguishing characteristics.

51.        Coix lacryma-jobi has seeds like beads on a plant that looks somewhat like a small corn plant. It has been

 cultivated since the Middle Ages along with Phalaris arundinacea var. picta.

52.        Hybrids and cultivars are defined and discussed in The International Code of Nomenclature for Cultivated Plants.